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hvf.c
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hvf.c
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/*
* QEMU Hypervisor.framework support for Apple Silicon
* Copyright 2020 Alexander Graf <agraf@csgraf.de>
* Copyright 2020 Google LLC
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*
*/
#include "qemu/osdep.h"
#include "qemu/error-report.h"
#include "sysemu/runstate.h"
#include "sysemu/hvf.h"
#include "sysemu/hvf_int.h"
#include "sysemu/hw_accel.h"
#include "hvf_arm.h"
#include "cpregs.h"
#include <mach/mach_time.h>
#include "exec/address-spaces.h"
#include "hw/irq.h"
#include "qemu/main-loop.h"
#include "sysemu/cpus.h"
#include "arm-powerctl.h"
#include "target/arm/cpu.h"
#include "target/arm/internals.h"
#include "target/arm/multiprocessing.h"
#include "target/arm/gtimer.h"
#include "trace/trace-target_arm_hvf.h"
#include "migration/vmstate.h"
#include "exec/gdbstub.h"
#define MDSCR_EL1_SS_SHIFT 0
#define MDSCR_EL1_MDE_SHIFT 15
static const uint16_t dbgbcr_regs[] = {
HV_SYS_REG_DBGBCR0_EL1,
HV_SYS_REG_DBGBCR1_EL1,
HV_SYS_REG_DBGBCR2_EL1,
HV_SYS_REG_DBGBCR3_EL1,
HV_SYS_REG_DBGBCR4_EL1,
HV_SYS_REG_DBGBCR5_EL1,
HV_SYS_REG_DBGBCR6_EL1,
HV_SYS_REG_DBGBCR7_EL1,
HV_SYS_REG_DBGBCR8_EL1,
HV_SYS_REG_DBGBCR9_EL1,
HV_SYS_REG_DBGBCR10_EL1,
HV_SYS_REG_DBGBCR11_EL1,
HV_SYS_REG_DBGBCR12_EL1,
HV_SYS_REG_DBGBCR13_EL1,
HV_SYS_REG_DBGBCR14_EL1,
HV_SYS_REG_DBGBCR15_EL1,
};
static const uint16_t dbgbvr_regs[] = {
HV_SYS_REG_DBGBVR0_EL1,
HV_SYS_REG_DBGBVR1_EL1,
HV_SYS_REG_DBGBVR2_EL1,
HV_SYS_REG_DBGBVR3_EL1,
HV_SYS_REG_DBGBVR4_EL1,
HV_SYS_REG_DBGBVR5_EL1,
HV_SYS_REG_DBGBVR6_EL1,
HV_SYS_REG_DBGBVR7_EL1,
HV_SYS_REG_DBGBVR8_EL1,
HV_SYS_REG_DBGBVR9_EL1,
HV_SYS_REG_DBGBVR10_EL1,
HV_SYS_REG_DBGBVR11_EL1,
HV_SYS_REG_DBGBVR12_EL1,
HV_SYS_REG_DBGBVR13_EL1,
HV_SYS_REG_DBGBVR14_EL1,
HV_SYS_REG_DBGBVR15_EL1,
};
static const uint16_t dbgwcr_regs[] = {
HV_SYS_REG_DBGWCR0_EL1,
HV_SYS_REG_DBGWCR1_EL1,
HV_SYS_REG_DBGWCR2_EL1,
HV_SYS_REG_DBGWCR3_EL1,
HV_SYS_REG_DBGWCR4_EL1,
HV_SYS_REG_DBGWCR5_EL1,
HV_SYS_REG_DBGWCR6_EL1,
HV_SYS_REG_DBGWCR7_EL1,
HV_SYS_REG_DBGWCR8_EL1,
HV_SYS_REG_DBGWCR9_EL1,
HV_SYS_REG_DBGWCR10_EL1,
HV_SYS_REG_DBGWCR11_EL1,
HV_SYS_REG_DBGWCR12_EL1,
HV_SYS_REG_DBGWCR13_EL1,
HV_SYS_REG_DBGWCR14_EL1,
HV_SYS_REG_DBGWCR15_EL1,
};
static const uint16_t dbgwvr_regs[] = {
HV_SYS_REG_DBGWVR0_EL1,
HV_SYS_REG_DBGWVR1_EL1,
HV_SYS_REG_DBGWVR2_EL1,
HV_SYS_REG_DBGWVR3_EL1,
HV_SYS_REG_DBGWVR4_EL1,
HV_SYS_REG_DBGWVR5_EL1,
HV_SYS_REG_DBGWVR6_EL1,
HV_SYS_REG_DBGWVR7_EL1,
HV_SYS_REG_DBGWVR8_EL1,
HV_SYS_REG_DBGWVR9_EL1,
HV_SYS_REG_DBGWVR10_EL1,
HV_SYS_REG_DBGWVR11_EL1,
HV_SYS_REG_DBGWVR12_EL1,
HV_SYS_REG_DBGWVR13_EL1,
HV_SYS_REG_DBGWVR14_EL1,
HV_SYS_REG_DBGWVR15_EL1,
};
static inline int hvf_arm_num_brps(hv_vcpu_config_t config)
{
uint64_t val;
hv_return_t ret;
ret = hv_vcpu_config_get_feature_reg(config, HV_FEATURE_REG_ID_AA64DFR0_EL1,
&val);
assert_hvf_ok(ret);
return FIELD_EX64(val, ID_AA64DFR0, BRPS) + 1;
}
static inline int hvf_arm_num_wrps(hv_vcpu_config_t config)
{
uint64_t val;
hv_return_t ret;
ret = hv_vcpu_config_get_feature_reg(config, HV_FEATURE_REG_ID_AA64DFR0_EL1,
&val);
assert_hvf_ok(ret);
return FIELD_EX64(val, ID_AA64DFR0, WRPS) + 1;
}
void hvf_arm_init_debug(void)
{
hv_vcpu_config_t config;
config = hv_vcpu_config_create();
max_hw_bps = hvf_arm_num_brps(config);
hw_breakpoints =
g_array_sized_new(true, true, sizeof(HWBreakpoint), max_hw_bps);
max_hw_wps = hvf_arm_num_wrps(config);
hw_watchpoints =
g_array_sized_new(true, true, sizeof(HWWatchpoint), max_hw_wps);
}
#define HVF_SYSREG(crn, crm, op0, op1, op2) \
ENCODE_AA64_CP_REG(CP_REG_ARM64_SYSREG_CP, crn, crm, op0, op1, op2)
#define SYSREG_OP0_SHIFT 20
#define SYSREG_OP0_MASK 0x3
#define SYSREG_OP0(sysreg) ((sysreg >> SYSREG_OP0_SHIFT) & SYSREG_OP0_MASK)
#define SYSREG_OP1_SHIFT 14
#define SYSREG_OP1_MASK 0x7
#define SYSREG_OP1(sysreg) ((sysreg >> SYSREG_OP1_SHIFT) & SYSREG_OP1_MASK)
#define SYSREG_CRN_SHIFT 10
#define SYSREG_CRN_MASK 0xf
#define SYSREG_CRN(sysreg) ((sysreg >> SYSREG_CRN_SHIFT) & SYSREG_CRN_MASK)
#define SYSREG_CRM_SHIFT 1
#define SYSREG_CRM_MASK 0xf
#define SYSREG_CRM(sysreg) ((sysreg >> SYSREG_CRM_SHIFT) & SYSREG_CRM_MASK)
#define SYSREG_OP2_SHIFT 17
#define SYSREG_OP2_MASK 0x7
#define SYSREG_OP2(sysreg) ((sysreg >> SYSREG_OP2_SHIFT) & SYSREG_OP2_MASK)
#define SYSREG(op0, op1, crn, crm, op2) \
((op0 << SYSREG_OP0_SHIFT) | \
(op1 << SYSREG_OP1_SHIFT) | \
(crn << SYSREG_CRN_SHIFT) | \
(crm << SYSREG_CRM_SHIFT) | \
(op2 << SYSREG_OP2_SHIFT))
#define SYSREG_MASK \
SYSREG(SYSREG_OP0_MASK, \
SYSREG_OP1_MASK, \
SYSREG_CRN_MASK, \
SYSREG_CRM_MASK, \
SYSREG_OP2_MASK)
#define SYSREG_OSLAR_EL1 SYSREG(2, 0, 1, 0, 4)
#define SYSREG_OSLSR_EL1 SYSREG(2, 0, 1, 1, 4)
#define SYSREG_OSDLR_EL1 SYSREG(2, 0, 1, 3, 4)
#define SYSREG_CNTPCT_EL0 SYSREG(3, 3, 14, 0, 1)
#define SYSREG_PMCR_EL0 SYSREG(3, 3, 9, 12, 0)
#define SYSREG_PMUSERENR_EL0 SYSREG(3, 3, 9, 14, 0)
#define SYSREG_PMCNTENSET_EL0 SYSREG(3, 3, 9, 12, 1)
#define SYSREG_PMCNTENCLR_EL0 SYSREG(3, 3, 9, 12, 2)
#define SYSREG_PMINTENCLR_EL1 SYSREG(3, 0, 9, 14, 2)
#define SYSREG_PMOVSCLR_EL0 SYSREG(3, 3, 9, 12, 3)
#define SYSREG_PMSWINC_EL0 SYSREG(3, 3, 9, 12, 4)
#define SYSREG_PMSELR_EL0 SYSREG(3, 3, 9, 12, 5)
#define SYSREG_PMCEID0_EL0 SYSREG(3, 3, 9, 12, 6)
#define SYSREG_PMCEID1_EL0 SYSREG(3, 3, 9, 12, 7)
#define SYSREG_PMCCNTR_EL0 SYSREG(3, 3, 9, 13, 0)
#define SYSREG_PMCCFILTR_EL0 SYSREG(3, 3, 14, 15, 7)
#define SYSREG_ICC_AP0R0_EL1 SYSREG(3, 0, 12, 8, 4)
#define SYSREG_ICC_AP0R1_EL1 SYSREG(3, 0, 12, 8, 5)
#define SYSREG_ICC_AP0R2_EL1 SYSREG(3, 0, 12, 8, 6)
#define SYSREG_ICC_AP0R3_EL1 SYSREG(3, 0, 12, 8, 7)
#define SYSREG_ICC_AP1R0_EL1 SYSREG(3, 0, 12, 9, 0)
#define SYSREG_ICC_AP1R1_EL1 SYSREG(3, 0, 12, 9, 1)
#define SYSREG_ICC_AP1R2_EL1 SYSREG(3, 0, 12, 9, 2)
#define SYSREG_ICC_AP1R3_EL1 SYSREG(3, 0, 12, 9, 3)
#define SYSREG_ICC_ASGI1R_EL1 SYSREG(3, 0, 12, 11, 6)
#define SYSREG_ICC_BPR0_EL1 SYSREG(3, 0, 12, 8, 3)
#define SYSREG_ICC_BPR1_EL1 SYSREG(3, 0, 12, 12, 3)
#define SYSREG_ICC_CTLR_EL1 SYSREG(3, 0, 12, 12, 4)
#define SYSREG_ICC_DIR_EL1 SYSREG(3, 0, 12, 11, 1)
#define SYSREG_ICC_EOIR0_EL1 SYSREG(3, 0, 12, 8, 1)
#define SYSREG_ICC_EOIR1_EL1 SYSREG(3, 0, 12, 12, 1)
#define SYSREG_ICC_HPPIR0_EL1 SYSREG(3, 0, 12, 8, 2)
#define SYSREG_ICC_HPPIR1_EL1 SYSREG(3, 0, 12, 12, 2)
#define SYSREG_ICC_IAR0_EL1 SYSREG(3, 0, 12, 8, 0)
#define SYSREG_ICC_IAR1_EL1 SYSREG(3, 0, 12, 12, 0)
#define SYSREG_ICC_IGRPEN0_EL1 SYSREG(3, 0, 12, 12, 6)
#define SYSREG_ICC_IGRPEN1_EL1 SYSREG(3, 0, 12, 12, 7)
#define SYSREG_ICC_PMR_EL1 SYSREG(3, 0, 4, 6, 0)
#define SYSREG_ICC_RPR_EL1 SYSREG(3, 0, 12, 11, 3)
#define SYSREG_ICC_SGI0R_EL1 SYSREG(3, 0, 12, 11, 7)
#define SYSREG_ICC_SGI1R_EL1 SYSREG(3, 0, 12, 11, 5)
#define SYSREG_ICC_SRE_EL1 SYSREG(3, 0, 12, 12, 5)
#define SYSREG_MDSCR_EL1 SYSREG(2, 0, 0, 2, 2)
#define SYSREG_DBGBVR0_EL1 SYSREG(2, 0, 0, 0, 4)
#define SYSREG_DBGBCR0_EL1 SYSREG(2, 0, 0, 0, 5)
#define SYSREG_DBGWVR0_EL1 SYSREG(2, 0, 0, 0, 6)
#define SYSREG_DBGWCR0_EL1 SYSREG(2, 0, 0, 0, 7)
#define SYSREG_DBGBVR1_EL1 SYSREG(2, 0, 0, 1, 4)
#define SYSREG_DBGBCR1_EL1 SYSREG(2, 0, 0, 1, 5)
#define SYSREG_DBGWVR1_EL1 SYSREG(2, 0, 0, 1, 6)
#define SYSREG_DBGWCR1_EL1 SYSREG(2, 0, 0, 1, 7)
#define SYSREG_DBGBVR2_EL1 SYSREG(2, 0, 0, 2, 4)
#define SYSREG_DBGBCR2_EL1 SYSREG(2, 0, 0, 2, 5)
#define SYSREG_DBGWVR2_EL1 SYSREG(2, 0, 0, 2, 6)
#define SYSREG_DBGWCR2_EL1 SYSREG(2, 0, 0, 2, 7)
#define SYSREG_DBGBVR3_EL1 SYSREG(2, 0, 0, 3, 4)
#define SYSREG_DBGBCR3_EL1 SYSREG(2, 0, 0, 3, 5)
#define SYSREG_DBGWVR3_EL1 SYSREG(2, 0, 0, 3, 6)
#define SYSREG_DBGWCR3_EL1 SYSREG(2, 0, 0, 3, 7)
#define SYSREG_DBGBVR4_EL1 SYSREG(2, 0, 0, 4, 4)
#define SYSREG_DBGBCR4_EL1 SYSREG(2, 0, 0, 4, 5)
#define SYSREG_DBGWVR4_EL1 SYSREG(2, 0, 0, 4, 6)
#define SYSREG_DBGWCR4_EL1 SYSREG(2, 0, 0, 4, 7)
#define SYSREG_DBGBVR5_EL1 SYSREG(2, 0, 0, 5, 4)
#define SYSREG_DBGBCR5_EL1 SYSREG(2, 0, 0, 5, 5)
#define SYSREG_DBGWVR5_EL1 SYSREG(2, 0, 0, 5, 6)
#define SYSREG_DBGWCR5_EL1 SYSREG(2, 0, 0, 5, 7)
#define SYSREG_DBGBVR6_EL1 SYSREG(2, 0, 0, 6, 4)
#define SYSREG_DBGBCR6_EL1 SYSREG(2, 0, 0, 6, 5)
#define SYSREG_DBGWVR6_EL1 SYSREG(2, 0, 0, 6, 6)
#define SYSREG_DBGWCR6_EL1 SYSREG(2, 0, 0, 6, 7)
#define SYSREG_DBGBVR7_EL1 SYSREG(2, 0, 0, 7, 4)
#define SYSREG_DBGBCR7_EL1 SYSREG(2, 0, 0, 7, 5)
#define SYSREG_DBGWVR7_EL1 SYSREG(2, 0, 0, 7, 6)
#define SYSREG_DBGWCR7_EL1 SYSREG(2, 0, 0, 7, 7)
#define SYSREG_DBGBVR8_EL1 SYSREG(2, 0, 0, 8, 4)
#define SYSREG_DBGBCR8_EL1 SYSREG(2, 0, 0, 8, 5)
#define SYSREG_DBGWVR8_EL1 SYSREG(2, 0, 0, 8, 6)
#define SYSREG_DBGWCR8_EL1 SYSREG(2, 0, 0, 8, 7)
#define SYSREG_DBGBVR9_EL1 SYSREG(2, 0, 0, 9, 4)
#define SYSREG_DBGBCR9_EL1 SYSREG(2, 0, 0, 9, 5)
#define SYSREG_DBGWVR9_EL1 SYSREG(2, 0, 0, 9, 6)
#define SYSREG_DBGWCR9_EL1 SYSREG(2, 0, 0, 9, 7)
#define SYSREG_DBGBVR10_EL1 SYSREG(2, 0, 0, 10, 4)
#define SYSREG_DBGBCR10_EL1 SYSREG(2, 0, 0, 10, 5)
#define SYSREG_DBGWVR10_EL1 SYSREG(2, 0, 0, 10, 6)
#define SYSREG_DBGWCR10_EL1 SYSREG(2, 0, 0, 10, 7)
#define SYSREG_DBGBVR11_EL1 SYSREG(2, 0, 0, 11, 4)
#define SYSREG_DBGBCR11_EL1 SYSREG(2, 0, 0, 11, 5)
#define SYSREG_DBGWVR11_EL1 SYSREG(2, 0, 0, 11, 6)
#define SYSREG_DBGWCR11_EL1 SYSREG(2, 0, 0, 11, 7)
#define SYSREG_DBGBVR12_EL1 SYSREG(2, 0, 0, 12, 4)
#define SYSREG_DBGBCR12_EL1 SYSREG(2, 0, 0, 12, 5)
#define SYSREG_DBGWVR12_EL1 SYSREG(2, 0, 0, 12, 6)
#define SYSREG_DBGWCR12_EL1 SYSREG(2, 0, 0, 12, 7)
#define SYSREG_DBGBVR13_EL1 SYSREG(2, 0, 0, 13, 4)
#define SYSREG_DBGBCR13_EL1 SYSREG(2, 0, 0, 13, 5)
#define SYSREG_DBGWVR13_EL1 SYSREG(2, 0, 0, 13, 6)
#define SYSREG_DBGWCR13_EL1 SYSREG(2, 0, 0, 13, 7)
#define SYSREG_DBGBVR14_EL1 SYSREG(2, 0, 0, 14, 4)
#define SYSREG_DBGBCR14_EL1 SYSREG(2, 0, 0, 14, 5)
#define SYSREG_DBGWVR14_EL1 SYSREG(2, 0, 0, 14, 6)
#define SYSREG_DBGWCR14_EL1 SYSREG(2, 0, 0, 14, 7)
#define SYSREG_DBGBVR15_EL1 SYSREG(2, 0, 0, 15, 4)
#define SYSREG_DBGBCR15_EL1 SYSREG(2, 0, 0, 15, 5)
#define SYSREG_DBGWVR15_EL1 SYSREG(2, 0, 0, 15, 6)
#define SYSREG_DBGWCR15_EL1 SYSREG(2, 0, 0, 15, 7)
#define WFX_IS_WFE (1 << 0)
#define TMR_CTL_ENABLE (1 << 0)
#define TMR_CTL_IMASK (1 << 1)
#define TMR_CTL_ISTATUS (1 << 2)
static void hvf_wfi(CPUState *cpu);
typedef struct HVFVTimer {
/* Vtimer value during migration and paused state */
uint64_t vtimer_val;
} HVFVTimer;
static HVFVTimer vtimer;
typedef struct ARMHostCPUFeatures {
ARMISARegisters isar;
uint64_t features;
uint64_t midr;
uint32_t reset_sctlr;
const char *dtb_compatible;
} ARMHostCPUFeatures;
static ARMHostCPUFeatures arm_host_cpu_features;
struct hvf_reg_match {
int reg;
uint64_t offset;
};
static const struct hvf_reg_match hvf_reg_match[] = {
{ HV_REG_X0, offsetof(CPUARMState, xregs[0]) },
{ HV_REG_X1, offsetof(CPUARMState, xregs[1]) },
{ HV_REG_X2, offsetof(CPUARMState, xregs[2]) },
{ HV_REG_X3, offsetof(CPUARMState, xregs[3]) },
{ HV_REG_X4, offsetof(CPUARMState, xregs[4]) },
{ HV_REG_X5, offsetof(CPUARMState, xregs[5]) },
{ HV_REG_X6, offsetof(CPUARMState, xregs[6]) },
{ HV_REG_X7, offsetof(CPUARMState, xregs[7]) },
{ HV_REG_X8, offsetof(CPUARMState, xregs[8]) },
{ HV_REG_X9, offsetof(CPUARMState, xregs[9]) },
{ HV_REG_X10, offsetof(CPUARMState, xregs[10]) },
{ HV_REG_X11, offsetof(CPUARMState, xregs[11]) },
{ HV_REG_X12, offsetof(CPUARMState, xregs[12]) },
{ HV_REG_X13, offsetof(CPUARMState, xregs[13]) },
{ HV_REG_X14, offsetof(CPUARMState, xregs[14]) },
{ HV_REG_X15, offsetof(CPUARMState, xregs[15]) },
{ HV_REG_X16, offsetof(CPUARMState, xregs[16]) },
{ HV_REG_X17, offsetof(CPUARMState, xregs[17]) },
{ HV_REG_X18, offsetof(CPUARMState, xregs[18]) },
{ HV_REG_X19, offsetof(CPUARMState, xregs[19]) },
{ HV_REG_X20, offsetof(CPUARMState, xregs[20]) },
{ HV_REG_X21, offsetof(CPUARMState, xregs[21]) },
{ HV_REG_X22, offsetof(CPUARMState, xregs[22]) },
{ HV_REG_X23, offsetof(CPUARMState, xregs[23]) },
{ HV_REG_X24, offsetof(CPUARMState, xregs[24]) },
{ HV_REG_X25, offsetof(CPUARMState, xregs[25]) },
{ HV_REG_X26, offsetof(CPUARMState, xregs[26]) },
{ HV_REG_X27, offsetof(CPUARMState, xregs[27]) },
{ HV_REG_X28, offsetof(CPUARMState, xregs[28]) },
{ HV_REG_X29, offsetof(CPUARMState, xregs[29]) },
{ HV_REG_X30, offsetof(CPUARMState, xregs[30]) },
{ HV_REG_PC, offsetof(CPUARMState, pc) },
};
static const struct hvf_reg_match hvf_fpreg_match[] = {
{ HV_SIMD_FP_REG_Q0, offsetof(CPUARMState, vfp.zregs[0]) },
{ HV_SIMD_FP_REG_Q1, offsetof(CPUARMState, vfp.zregs[1]) },
{ HV_SIMD_FP_REG_Q2, offsetof(CPUARMState, vfp.zregs[2]) },
{ HV_SIMD_FP_REG_Q3, offsetof(CPUARMState, vfp.zregs[3]) },
{ HV_SIMD_FP_REG_Q4, offsetof(CPUARMState, vfp.zregs[4]) },
{ HV_SIMD_FP_REG_Q5, offsetof(CPUARMState, vfp.zregs[5]) },
{ HV_SIMD_FP_REG_Q6, offsetof(CPUARMState, vfp.zregs[6]) },
{ HV_SIMD_FP_REG_Q7, offsetof(CPUARMState, vfp.zregs[7]) },
{ HV_SIMD_FP_REG_Q8, offsetof(CPUARMState, vfp.zregs[8]) },
{ HV_SIMD_FP_REG_Q9, offsetof(CPUARMState, vfp.zregs[9]) },
{ HV_SIMD_FP_REG_Q10, offsetof(CPUARMState, vfp.zregs[10]) },
{ HV_SIMD_FP_REG_Q11, offsetof(CPUARMState, vfp.zregs[11]) },
{ HV_SIMD_FP_REG_Q12, offsetof(CPUARMState, vfp.zregs[12]) },
{ HV_SIMD_FP_REG_Q13, offsetof(CPUARMState, vfp.zregs[13]) },
{ HV_SIMD_FP_REG_Q14, offsetof(CPUARMState, vfp.zregs[14]) },
{ HV_SIMD_FP_REG_Q15, offsetof(CPUARMState, vfp.zregs[15]) },
{ HV_SIMD_FP_REG_Q16, offsetof(CPUARMState, vfp.zregs[16]) },
{ HV_SIMD_FP_REG_Q17, offsetof(CPUARMState, vfp.zregs[17]) },
{ HV_SIMD_FP_REG_Q18, offsetof(CPUARMState, vfp.zregs[18]) },
{ HV_SIMD_FP_REG_Q19, offsetof(CPUARMState, vfp.zregs[19]) },
{ HV_SIMD_FP_REG_Q20, offsetof(CPUARMState, vfp.zregs[20]) },
{ HV_SIMD_FP_REG_Q21, offsetof(CPUARMState, vfp.zregs[21]) },
{ HV_SIMD_FP_REG_Q22, offsetof(CPUARMState, vfp.zregs[22]) },
{ HV_SIMD_FP_REG_Q23, offsetof(CPUARMState, vfp.zregs[23]) },
{ HV_SIMD_FP_REG_Q24, offsetof(CPUARMState, vfp.zregs[24]) },
{ HV_SIMD_FP_REG_Q25, offsetof(CPUARMState, vfp.zregs[25]) },
{ HV_SIMD_FP_REG_Q26, offsetof(CPUARMState, vfp.zregs[26]) },
{ HV_SIMD_FP_REG_Q27, offsetof(CPUARMState, vfp.zregs[27]) },
{ HV_SIMD_FP_REG_Q28, offsetof(CPUARMState, vfp.zregs[28]) },
{ HV_SIMD_FP_REG_Q29, offsetof(CPUARMState, vfp.zregs[29]) },
{ HV_SIMD_FP_REG_Q30, offsetof(CPUARMState, vfp.zregs[30]) },
{ HV_SIMD_FP_REG_Q31, offsetof(CPUARMState, vfp.zregs[31]) },
};
struct hvf_sreg_match {
int reg;
uint32_t key;
uint32_t cp_idx;
};
static struct hvf_sreg_match hvf_sreg_match[] = {
{ HV_SYS_REG_DBGBVR0_EL1, HVF_SYSREG(0, 0, 2, 0, 4) },
{ HV_SYS_REG_DBGBCR0_EL1, HVF_SYSREG(0, 0, 2, 0, 5) },
{ HV_SYS_REG_DBGWVR0_EL1, HVF_SYSREG(0, 0, 2, 0, 6) },
{ HV_SYS_REG_DBGWCR0_EL1, HVF_SYSREG(0, 0, 2, 0, 7) },
{ HV_SYS_REG_DBGBVR1_EL1, HVF_SYSREG(0, 1, 2, 0, 4) },
{ HV_SYS_REG_DBGBCR1_EL1, HVF_SYSREG(0, 1, 2, 0, 5) },
{ HV_SYS_REG_DBGWVR1_EL1, HVF_SYSREG(0, 1, 2, 0, 6) },
{ HV_SYS_REG_DBGWCR1_EL1, HVF_SYSREG(0, 1, 2, 0, 7) },
{ HV_SYS_REG_DBGBVR2_EL1, HVF_SYSREG(0, 2, 2, 0, 4) },
{ HV_SYS_REG_DBGBCR2_EL1, HVF_SYSREG(0, 2, 2, 0, 5) },
{ HV_SYS_REG_DBGWVR2_EL1, HVF_SYSREG(0, 2, 2, 0, 6) },
{ HV_SYS_REG_DBGWCR2_EL1, HVF_SYSREG(0, 2, 2, 0, 7) },
{ HV_SYS_REG_DBGBVR3_EL1, HVF_SYSREG(0, 3, 2, 0, 4) },
{ HV_SYS_REG_DBGBCR3_EL1, HVF_SYSREG(0, 3, 2, 0, 5) },
{ HV_SYS_REG_DBGWVR3_EL1, HVF_SYSREG(0, 3, 2, 0, 6) },
{ HV_SYS_REG_DBGWCR3_EL1, HVF_SYSREG(0, 3, 2, 0, 7) },
{ HV_SYS_REG_DBGBVR4_EL1, HVF_SYSREG(0, 4, 2, 0, 4) },
{ HV_SYS_REG_DBGBCR4_EL1, HVF_SYSREG(0, 4, 2, 0, 5) },
{ HV_SYS_REG_DBGWVR4_EL1, HVF_SYSREG(0, 4, 2, 0, 6) },
{ HV_SYS_REG_DBGWCR4_EL1, HVF_SYSREG(0, 4, 2, 0, 7) },
{ HV_SYS_REG_DBGBVR5_EL1, HVF_SYSREG(0, 5, 2, 0, 4) },
{ HV_SYS_REG_DBGBCR5_EL1, HVF_SYSREG(0, 5, 2, 0, 5) },
{ HV_SYS_REG_DBGWVR5_EL1, HVF_SYSREG(0, 5, 2, 0, 6) },
{ HV_SYS_REG_DBGWCR5_EL1, HVF_SYSREG(0, 5, 2, 0, 7) },
{ HV_SYS_REG_DBGBVR6_EL1, HVF_SYSREG(0, 6, 2, 0, 4) },
{ HV_SYS_REG_DBGBCR6_EL1, HVF_SYSREG(0, 6, 2, 0, 5) },
{ HV_SYS_REG_DBGWVR6_EL1, HVF_SYSREG(0, 6, 2, 0, 6) },
{ HV_SYS_REG_DBGWCR6_EL1, HVF_SYSREG(0, 6, 2, 0, 7) },
{ HV_SYS_REG_DBGBVR7_EL1, HVF_SYSREG(0, 7, 2, 0, 4) },
{ HV_SYS_REG_DBGBCR7_EL1, HVF_SYSREG(0, 7, 2, 0, 5) },
{ HV_SYS_REG_DBGWVR7_EL1, HVF_SYSREG(0, 7, 2, 0, 6) },
{ HV_SYS_REG_DBGWCR7_EL1, HVF_SYSREG(0, 7, 2, 0, 7) },
{ HV_SYS_REG_DBGBVR8_EL1, HVF_SYSREG(0, 8, 2, 0, 4) },
{ HV_SYS_REG_DBGBCR8_EL1, HVF_SYSREG(0, 8, 2, 0, 5) },
{ HV_SYS_REG_DBGWVR8_EL1, HVF_SYSREG(0, 8, 2, 0, 6) },
{ HV_SYS_REG_DBGWCR8_EL1, HVF_SYSREG(0, 8, 2, 0, 7) },
{ HV_SYS_REG_DBGBVR9_EL1, HVF_SYSREG(0, 9, 2, 0, 4) },
{ HV_SYS_REG_DBGBCR9_EL1, HVF_SYSREG(0, 9, 2, 0, 5) },
{ HV_SYS_REG_DBGWVR9_EL1, HVF_SYSREG(0, 9, 2, 0, 6) },
{ HV_SYS_REG_DBGWCR9_EL1, HVF_SYSREG(0, 9, 2, 0, 7) },
{ HV_SYS_REG_DBGBVR10_EL1, HVF_SYSREG(0, 10, 2, 0, 4) },
{ HV_SYS_REG_DBGBCR10_EL1, HVF_SYSREG(0, 10, 2, 0, 5) },
{ HV_SYS_REG_DBGWVR10_EL1, HVF_SYSREG(0, 10, 2, 0, 6) },
{ HV_SYS_REG_DBGWCR10_EL1, HVF_SYSREG(0, 10, 2, 0, 7) },
{ HV_SYS_REG_DBGBVR11_EL1, HVF_SYSREG(0, 11, 2, 0, 4) },
{ HV_SYS_REG_DBGBCR11_EL1, HVF_SYSREG(0, 11, 2, 0, 5) },
{ HV_SYS_REG_DBGWVR11_EL1, HVF_SYSREG(0, 11, 2, 0, 6) },
{ HV_SYS_REG_DBGWCR11_EL1, HVF_SYSREG(0, 11, 2, 0, 7) },
{ HV_SYS_REG_DBGBVR12_EL1, HVF_SYSREG(0, 12, 2, 0, 4) },
{ HV_SYS_REG_DBGBCR12_EL1, HVF_SYSREG(0, 12, 2, 0, 5) },
{ HV_SYS_REG_DBGWVR12_EL1, HVF_SYSREG(0, 12, 2, 0, 6) },
{ HV_SYS_REG_DBGWCR12_EL1, HVF_SYSREG(0, 12, 2, 0, 7) },
{ HV_SYS_REG_DBGBVR13_EL1, HVF_SYSREG(0, 13, 2, 0, 4) },
{ HV_SYS_REG_DBGBCR13_EL1, HVF_SYSREG(0, 13, 2, 0, 5) },
{ HV_SYS_REG_DBGWVR13_EL1, HVF_SYSREG(0, 13, 2, 0, 6) },
{ HV_SYS_REG_DBGWCR13_EL1, HVF_SYSREG(0, 13, 2, 0, 7) },
{ HV_SYS_REG_DBGBVR14_EL1, HVF_SYSREG(0, 14, 2, 0, 4) },
{ HV_SYS_REG_DBGBCR14_EL1, HVF_SYSREG(0, 14, 2, 0, 5) },
{ HV_SYS_REG_DBGWVR14_EL1, HVF_SYSREG(0, 14, 2, 0, 6) },
{ HV_SYS_REG_DBGWCR14_EL1, HVF_SYSREG(0, 14, 2, 0, 7) },
{ HV_SYS_REG_DBGBVR15_EL1, HVF_SYSREG(0, 15, 2, 0, 4) },
{ HV_SYS_REG_DBGBCR15_EL1, HVF_SYSREG(0, 15, 2, 0, 5) },
{ HV_SYS_REG_DBGWVR15_EL1, HVF_SYSREG(0, 15, 2, 0, 6) },
{ HV_SYS_REG_DBGWCR15_EL1, HVF_SYSREG(0, 15, 2, 0, 7) },
#ifdef SYNC_NO_RAW_REGS
/*
* The registers below are manually synced on init because they are
* marked as NO_RAW. We still list them to make number space sync easier.
*/
{ HV_SYS_REG_MDCCINT_EL1, HVF_SYSREG(0, 2, 2, 0, 0) },
{ HV_SYS_REG_MIDR_EL1, HVF_SYSREG(0, 0, 3, 0, 0) },
{ HV_SYS_REG_MPIDR_EL1, HVF_SYSREG(0, 0, 3, 0, 5) },
{ HV_SYS_REG_ID_AA64PFR0_EL1, HVF_SYSREG(0, 4, 3, 0, 0) },
#endif
{ HV_SYS_REG_ID_AA64PFR1_EL1, HVF_SYSREG(0, 4, 3, 0, 1) },
{ HV_SYS_REG_ID_AA64DFR0_EL1, HVF_SYSREG(0, 5, 3, 0, 0) },
{ HV_SYS_REG_ID_AA64DFR1_EL1, HVF_SYSREG(0, 5, 3, 0, 1) },
{ HV_SYS_REG_ID_AA64ISAR0_EL1, HVF_SYSREG(0, 6, 3, 0, 0) },
{ HV_SYS_REG_ID_AA64ISAR1_EL1, HVF_SYSREG(0, 6, 3, 0, 1) },
#ifdef SYNC_NO_MMFR0
/* We keep the hardware MMFR0 around. HW limits are there anyway */
{ HV_SYS_REG_ID_AA64MMFR0_EL1, HVF_SYSREG(0, 7, 3, 0, 0) },
#endif
{ HV_SYS_REG_ID_AA64MMFR1_EL1, HVF_SYSREG(0, 7, 3, 0, 1) },
{ HV_SYS_REG_ID_AA64MMFR2_EL1, HVF_SYSREG(0, 7, 3, 0, 2) },
/* Add ID_AA64MMFR3_EL1 here when HVF supports it */
{ HV_SYS_REG_MDSCR_EL1, HVF_SYSREG(0, 2, 2, 0, 2) },
{ HV_SYS_REG_SCTLR_EL1, HVF_SYSREG(1, 0, 3, 0, 0) },
{ HV_SYS_REG_CPACR_EL1, HVF_SYSREG(1, 0, 3, 0, 2) },
{ HV_SYS_REG_TTBR0_EL1, HVF_SYSREG(2, 0, 3, 0, 0) },
{ HV_SYS_REG_TTBR1_EL1, HVF_SYSREG(2, 0, 3, 0, 1) },
{ HV_SYS_REG_TCR_EL1, HVF_SYSREG(2, 0, 3, 0, 2) },
{ HV_SYS_REG_APIAKEYLO_EL1, HVF_SYSREG(2, 1, 3, 0, 0) },
{ HV_SYS_REG_APIAKEYHI_EL1, HVF_SYSREG(2, 1, 3, 0, 1) },
{ HV_SYS_REG_APIBKEYLO_EL1, HVF_SYSREG(2, 1, 3, 0, 2) },
{ HV_SYS_REG_APIBKEYHI_EL1, HVF_SYSREG(2, 1, 3, 0, 3) },
{ HV_SYS_REG_APDAKEYLO_EL1, HVF_SYSREG(2, 2, 3, 0, 0) },
{ HV_SYS_REG_APDAKEYHI_EL1, HVF_SYSREG(2, 2, 3, 0, 1) },
{ HV_SYS_REG_APDBKEYLO_EL1, HVF_SYSREG(2, 2, 3, 0, 2) },
{ HV_SYS_REG_APDBKEYHI_EL1, HVF_SYSREG(2, 2, 3, 0, 3) },
{ HV_SYS_REG_APGAKEYLO_EL1, HVF_SYSREG(2, 3, 3, 0, 0) },
{ HV_SYS_REG_APGAKEYHI_EL1, HVF_SYSREG(2, 3, 3, 0, 1) },
{ HV_SYS_REG_SPSR_EL1, HVF_SYSREG(4, 0, 3, 0, 0) },
{ HV_SYS_REG_ELR_EL1, HVF_SYSREG(4, 0, 3, 0, 1) },
{ HV_SYS_REG_SP_EL0, HVF_SYSREG(4, 1, 3, 0, 0) },
{ HV_SYS_REG_AFSR0_EL1, HVF_SYSREG(5, 1, 3, 0, 0) },
{ HV_SYS_REG_AFSR1_EL1, HVF_SYSREG(5, 1, 3, 0, 1) },
{ HV_SYS_REG_ESR_EL1, HVF_SYSREG(5, 2, 3, 0, 0) },
{ HV_SYS_REG_FAR_EL1, HVF_SYSREG(6, 0, 3, 0, 0) },
{ HV_SYS_REG_PAR_EL1, HVF_SYSREG(7, 4, 3, 0, 0) },
{ HV_SYS_REG_MAIR_EL1, HVF_SYSREG(10, 2, 3, 0, 0) },
{ HV_SYS_REG_AMAIR_EL1, HVF_SYSREG(10, 3, 3, 0, 0) },
{ HV_SYS_REG_VBAR_EL1, HVF_SYSREG(12, 0, 3, 0, 0) },
{ HV_SYS_REG_CONTEXTIDR_EL1, HVF_SYSREG(13, 0, 3, 0, 1) },
{ HV_SYS_REG_TPIDR_EL1, HVF_SYSREG(13, 0, 3, 0, 4) },
{ HV_SYS_REG_CNTKCTL_EL1, HVF_SYSREG(14, 1, 3, 0, 0) },
{ HV_SYS_REG_CSSELR_EL1, HVF_SYSREG(0, 0, 3, 2, 0) },
{ HV_SYS_REG_TPIDR_EL0, HVF_SYSREG(13, 0, 3, 3, 2) },
{ HV_SYS_REG_TPIDRRO_EL0, HVF_SYSREG(13, 0, 3, 3, 3) },
{ HV_SYS_REG_CNTV_CTL_EL0, HVF_SYSREG(14, 3, 3, 3, 1) },
{ HV_SYS_REG_CNTV_CVAL_EL0, HVF_SYSREG(14, 3, 3, 3, 2) },
{ HV_SYS_REG_SP_EL1, HVF_SYSREG(4, 1, 3, 4, 0) },
};
int hvf_get_registers(CPUState *cpu)
{
ARMCPU *arm_cpu = ARM_CPU(cpu);
CPUARMState *env = &arm_cpu->env;
hv_return_t ret;
uint64_t val;
hv_simd_fp_uchar16_t fpval;
int i;
for (i = 0; i < ARRAY_SIZE(hvf_reg_match); i++) {
ret = hv_vcpu_get_reg(cpu->accel->fd, hvf_reg_match[i].reg, &val);
*(uint64_t *)((void *)env + hvf_reg_match[i].offset) = val;
assert_hvf_ok(ret);
}
for (i = 0; i < ARRAY_SIZE(hvf_fpreg_match); i++) {
ret = hv_vcpu_get_simd_fp_reg(cpu->accel->fd, hvf_fpreg_match[i].reg,
&fpval);
memcpy((void *)env + hvf_fpreg_match[i].offset, &fpval, sizeof(fpval));
assert_hvf_ok(ret);
}
val = 0;
ret = hv_vcpu_get_reg(cpu->accel->fd, HV_REG_FPCR, &val);
assert_hvf_ok(ret);
vfp_set_fpcr(env, val);
val = 0;
ret = hv_vcpu_get_reg(cpu->accel->fd, HV_REG_FPSR, &val);
assert_hvf_ok(ret);
vfp_set_fpsr(env, val);
ret = hv_vcpu_get_reg(cpu->accel->fd, HV_REG_CPSR, &val);
assert_hvf_ok(ret);
pstate_write(env, val);
for (i = 0; i < ARRAY_SIZE(hvf_sreg_match); i++) {
if (hvf_sreg_match[i].cp_idx == -1) {
continue;
}
if (cpu->accel->guest_debug_enabled) {
/* Handle debug registers */
switch (hvf_sreg_match[i].reg) {
case HV_SYS_REG_DBGBVR0_EL1:
case HV_SYS_REG_DBGBCR0_EL1:
case HV_SYS_REG_DBGWVR0_EL1:
case HV_SYS_REG_DBGWCR0_EL1:
case HV_SYS_REG_DBGBVR1_EL1:
case HV_SYS_REG_DBGBCR1_EL1:
case HV_SYS_REG_DBGWVR1_EL1:
case HV_SYS_REG_DBGWCR1_EL1:
case HV_SYS_REG_DBGBVR2_EL1:
case HV_SYS_REG_DBGBCR2_EL1:
case HV_SYS_REG_DBGWVR2_EL1:
case HV_SYS_REG_DBGWCR2_EL1:
case HV_SYS_REG_DBGBVR3_EL1:
case HV_SYS_REG_DBGBCR3_EL1:
case HV_SYS_REG_DBGWVR3_EL1:
case HV_SYS_REG_DBGWCR3_EL1:
case HV_SYS_REG_DBGBVR4_EL1:
case HV_SYS_REG_DBGBCR4_EL1:
case HV_SYS_REG_DBGWVR4_EL1:
case HV_SYS_REG_DBGWCR4_EL1:
case HV_SYS_REG_DBGBVR5_EL1:
case HV_SYS_REG_DBGBCR5_EL1:
case HV_SYS_REG_DBGWVR5_EL1:
case HV_SYS_REG_DBGWCR5_EL1:
case HV_SYS_REG_DBGBVR6_EL1:
case HV_SYS_REG_DBGBCR6_EL1:
case HV_SYS_REG_DBGWVR6_EL1:
case HV_SYS_REG_DBGWCR6_EL1:
case HV_SYS_REG_DBGBVR7_EL1:
case HV_SYS_REG_DBGBCR7_EL1:
case HV_SYS_REG_DBGWVR7_EL1:
case HV_SYS_REG_DBGWCR7_EL1:
case HV_SYS_REG_DBGBVR8_EL1:
case HV_SYS_REG_DBGBCR8_EL1:
case HV_SYS_REG_DBGWVR8_EL1:
case HV_SYS_REG_DBGWCR8_EL1:
case HV_SYS_REG_DBGBVR9_EL1:
case HV_SYS_REG_DBGBCR9_EL1:
case HV_SYS_REG_DBGWVR9_EL1:
case HV_SYS_REG_DBGWCR9_EL1:
case HV_SYS_REG_DBGBVR10_EL1:
case HV_SYS_REG_DBGBCR10_EL1:
case HV_SYS_REG_DBGWVR10_EL1:
case HV_SYS_REG_DBGWCR10_EL1:
case HV_SYS_REG_DBGBVR11_EL1:
case HV_SYS_REG_DBGBCR11_EL1:
case HV_SYS_REG_DBGWVR11_EL1:
case HV_SYS_REG_DBGWCR11_EL1:
case HV_SYS_REG_DBGBVR12_EL1:
case HV_SYS_REG_DBGBCR12_EL1:
case HV_SYS_REG_DBGWVR12_EL1:
case HV_SYS_REG_DBGWCR12_EL1:
case HV_SYS_REG_DBGBVR13_EL1:
case HV_SYS_REG_DBGBCR13_EL1:
case HV_SYS_REG_DBGWVR13_EL1:
case HV_SYS_REG_DBGWCR13_EL1:
case HV_SYS_REG_DBGBVR14_EL1:
case HV_SYS_REG_DBGBCR14_EL1:
case HV_SYS_REG_DBGWVR14_EL1:
case HV_SYS_REG_DBGWCR14_EL1:
case HV_SYS_REG_DBGBVR15_EL1:
case HV_SYS_REG_DBGBCR15_EL1:
case HV_SYS_REG_DBGWVR15_EL1:
case HV_SYS_REG_DBGWCR15_EL1: {
/*
* If the guest is being debugged, the vCPU's debug registers
* are holding the gdbstub's view of the registers (set in
* hvf_arch_update_guest_debug()).
* Since the environment is used to store only the guest's view
* of the registers, don't update it with the values from the
* vCPU but simply keep the values from the previous
* environment.
*/
const ARMCPRegInfo *ri;
ri = get_arm_cp_reginfo(arm_cpu->cp_regs, hvf_sreg_match[i].key);
val = read_raw_cp_reg(env, ri);
arm_cpu->cpreg_values[hvf_sreg_match[i].cp_idx] = val;
continue;
}
}
}
ret = hv_vcpu_get_sys_reg(cpu->accel->fd, hvf_sreg_match[i].reg, &val);
assert_hvf_ok(ret);
arm_cpu->cpreg_values[hvf_sreg_match[i].cp_idx] = val;
}
assert(write_list_to_cpustate(arm_cpu));
aarch64_restore_sp(env, arm_current_el(env));
return 0;
}
int hvf_put_registers(CPUState *cpu)
{
ARMCPU *arm_cpu = ARM_CPU(cpu);
CPUARMState *env = &arm_cpu->env;
hv_return_t ret;
uint64_t val;
hv_simd_fp_uchar16_t fpval;
int i;
for (i = 0; i < ARRAY_SIZE(hvf_reg_match); i++) {
val = *(uint64_t *)((void *)env + hvf_reg_match[i].offset);
ret = hv_vcpu_set_reg(cpu->accel->fd, hvf_reg_match[i].reg, val);
assert_hvf_ok(ret);
}
for (i = 0; i < ARRAY_SIZE(hvf_fpreg_match); i++) {
memcpy(&fpval, (void *)env + hvf_fpreg_match[i].offset, sizeof(fpval));
ret = hv_vcpu_set_simd_fp_reg(cpu->accel->fd, hvf_fpreg_match[i].reg,
fpval);
assert_hvf_ok(ret);
}
ret = hv_vcpu_set_reg(cpu->accel->fd, HV_REG_FPCR, vfp_get_fpcr(env));
assert_hvf_ok(ret);
ret = hv_vcpu_set_reg(cpu->accel->fd, HV_REG_FPSR, vfp_get_fpsr(env));
assert_hvf_ok(ret);
ret = hv_vcpu_set_reg(cpu->accel->fd, HV_REG_CPSR, pstate_read(env));
assert_hvf_ok(ret);
aarch64_save_sp(env, arm_current_el(env));
assert(write_cpustate_to_list(arm_cpu, false));
for (i = 0; i < ARRAY_SIZE(hvf_sreg_match); i++) {
if (hvf_sreg_match[i].cp_idx == -1) {
continue;
}
if (cpu->accel->guest_debug_enabled) {
/* Handle debug registers */
switch (hvf_sreg_match[i].reg) {
case HV_SYS_REG_DBGBVR0_EL1:
case HV_SYS_REG_DBGBCR0_EL1:
case HV_SYS_REG_DBGWVR0_EL1:
case HV_SYS_REG_DBGWCR0_EL1:
case HV_SYS_REG_DBGBVR1_EL1:
case HV_SYS_REG_DBGBCR1_EL1:
case HV_SYS_REG_DBGWVR1_EL1:
case HV_SYS_REG_DBGWCR1_EL1:
case HV_SYS_REG_DBGBVR2_EL1:
case HV_SYS_REG_DBGBCR2_EL1:
case HV_SYS_REG_DBGWVR2_EL1:
case HV_SYS_REG_DBGWCR2_EL1:
case HV_SYS_REG_DBGBVR3_EL1:
case HV_SYS_REG_DBGBCR3_EL1:
case HV_SYS_REG_DBGWVR3_EL1:
case HV_SYS_REG_DBGWCR3_EL1:
case HV_SYS_REG_DBGBVR4_EL1:
case HV_SYS_REG_DBGBCR4_EL1:
case HV_SYS_REG_DBGWVR4_EL1:
case HV_SYS_REG_DBGWCR4_EL1:
case HV_SYS_REG_DBGBVR5_EL1:
case HV_SYS_REG_DBGBCR5_EL1:
case HV_SYS_REG_DBGWVR5_EL1:
case HV_SYS_REG_DBGWCR5_EL1:
case HV_SYS_REG_DBGBVR6_EL1:
case HV_SYS_REG_DBGBCR6_EL1:
case HV_SYS_REG_DBGWVR6_EL1:
case HV_SYS_REG_DBGWCR6_EL1:
case HV_SYS_REG_DBGBVR7_EL1:
case HV_SYS_REG_DBGBCR7_EL1:
case HV_SYS_REG_DBGWVR7_EL1:
case HV_SYS_REG_DBGWCR7_EL1:
case HV_SYS_REG_DBGBVR8_EL1:
case HV_SYS_REG_DBGBCR8_EL1:
case HV_SYS_REG_DBGWVR8_EL1:
case HV_SYS_REG_DBGWCR8_EL1:
case HV_SYS_REG_DBGBVR9_EL1:
case HV_SYS_REG_DBGBCR9_EL1:
case HV_SYS_REG_DBGWVR9_EL1:
case HV_SYS_REG_DBGWCR9_EL1:
case HV_SYS_REG_DBGBVR10_EL1:
case HV_SYS_REG_DBGBCR10_EL1:
case HV_SYS_REG_DBGWVR10_EL1:
case HV_SYS_REG_DBGWCR10_EL1:
case HV_SYS_REG_DBGBVR11_EL1:
case HV_SYS_REG_DBGBCR11_EL1:
case HV_SYS_REG_DBGWVR11_EL1:
case HV_SYS_REG_DBGWCR11_EL1:
case HV_SYS_REG_DBGBVR12_EL1:
case HV_SYS_REG_DBGBCR12_EL1:
case HV_SYS_REG_DBGWVR12_EL1:
case HV_SYS_REG_DBGWCR12_EL1:
case HV_SYS_REG_DBGBVR13_EL1:
case HV_SYS_REG_DBGBCR13_EL1:
case HV_SYS_REG_DBGWVR13_EL1:
case HV_SYS_REG_DBGWCR13_EL1:
case HV_SYS_REG_DBGBVR14_EL1:
case HV_SYS_REG_DBGBCR14_EL1:
case HV_SYS_REG_DBGWVR14_EL1:
case HV_SYS_REG_DBGWCR14_EL1:
case HV_SYS_REG_DBGBVR15_EL1:
case HV_SYS_REG_DBGBCR15_EL1:
case HV_SYS_REG_DBGWVR15_EL1:
case HV_SYS_REG_DBGWCR15_EL1:
/*
* If the guest is being debugged, the vCPU's debug registers
* are already holding the gdbstub's view of the registers (set
* in hvf_arch_update_guest_debug()).
*/
continue;
}
}
val = arm_cpu->cpreg_values[hvf_sreg_match[i].cp_idx];
ret = hv_vcpu_set_sys_reg(cpu->accel->fd, hvf_sreg_match[i].reg, val);
assert_hvf_ok(ret);
}
ret = hv_vcpu_set_vtimer_offset(cpu->accel->fd, hvf_state->vtimer_offset);
assert_hvf_ok(ret);
return 0;
}
static void flush_cpu_state(CPUState *cpu)
{
if (cpu->accel->dirty) {
hvf_put_registers(cpu);
cpu->accel->dirty = false;
}
}
static void hvf_set_reg(CPUState *cpu, int rt, uint64_t val)
{
hv_return_t r;
flush_cpu_state(cpu);
if (rt < 31) {
r = hv_vcpu_set_reg(cpu->accel->fd, HV_REG_X0 + rt, val);
assert_hvf_ok(r);
}
}
static uint64_t hvf_get_reg(CPUState *cpu, int rt)
{
uint64_t val = 0;
hv_return_t r;
flush_cpu_state(cpu);
if (rt < 31) {
r = hv_vcpu_get_reg(cpu->accel->fd, HV_REG_X0 + rt, &val);
assert_hvf_ok(r);
}
return val;
}
static bool hvf_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)
{
ARMISARegisters host_isar = {};
const struct isar_regs {
int reg;
uint64_t *val;
} regs[] = {
{ HV_SYS_REG_ID_AA64PFR0_EL1, &host_isar.id_aa64pfr0 },
{ HV_SYS_REG_ID_AA64PFR1_EL1, &host_isar.id_aa64pfr1 },
{ HV_SYS_REG_ID_AA64DFR0_EL1, &host_isar.id_aa64dfr0 },
{ HV_SYS_REG_ID_AA64DFR1_EL1, &host_isar.id_aa64dfr1 },
{ HV_SYS_REG_ID_AA64ISAR0_EL1, &host_isar.id_aa64isar0 },
{ HV_SYS_REG_ID_AA64ISAR1_EL1, &host_isar.id_aa64isar1 },
/* Add ID_AA64ISAR2_EL1 here when HVF supports it */
{ HV_SYS_REG_ID_AA64MMFR0_EL1, &host_isar.id_aa64mmfr0 },
{ HV_SYS_REG_ID_AA64MMFR1_EL1, &host_isar.id_aa64mmfr1 },
{ HV_SYS_REG_ID_AA64MMFR2_EL1, &host_isar.id_aa64mmfr2 },
/* Add ID_AA64MMFR3_EL1 here when HVF supports it */
};
hv_vcpu_t fd;
hv_return_t r = HV_SUCCESS;
hv_vcpu_exit_t *exit;
int i;
ahcf->dtb_compatible = "arm,arm-v8";
ahcf->features = (1ULL << ARM_FEATURE_V8) |
(1ULL << ARM_FEATURE_NEON) |
(1ULL << ARM_FEATURE_AARCH64) |
(1ULL << ARM_FEATURE_PMU) |
(1ULL << ARM_FEATURE_GENERIC_TIMER);
/* We set up a small vcpu to extract host registers */
if (hv_vcpu_create(&fd, &exit, NULL) != HV_SUCCESS) {
return false;
}
for (i = 0; i < ARRAY_SIZE(regs); i++) {
r |= hv_vcpu_get_sys_reg(fd, regs[i].reg, regs[i].val);
}
r |= hv_vcpu_get_sys_reg(fd, HV_SYS_REG_MIDR_EL1, &ahcf->midr);
r |= hv_vcpu_destroy(fd);
ahcf->isar = host_isar;
/*
* A scratch vCPU returns SCTLR 0, so let's fill our default with the M1
* boot SCTLR from https://github.com/AsahiLinux/m1n1/issues/97
*/
ahcf->reset_sctlr = 0x30100180;
/*
* SPAN is disabled by default when SCTLR.SPAN=1. To improve compatibility,
* let's disable it on boot and then allow guest software to turn it on by
* setting it to 0.
*/
ahcf->reset_sctlr |= 0x00800000;
/* Make sure we don't advertise AArch32 support for EL0/EL1 */
if ((host_isar.id_aa64pfr0 & 0xff) != 0x11) {
return false;
}
return r == HV_SUCCESS;
}
void hvf_arm_set_cpu_features_from_host(ARMCPU *cpu)
{
if (!arm_host_cpu_features.dtb_compatible) {
if (!hvf_enabled() ||
!hvf_arm_get_host_cpu_features(&arm_host_cpu_features)) {
/*
* We can't report this error yet, so flag that we need to
* in arm_cpu_realizefn().
*/
cpu->host_cpu_probe_failed = true;
return;
}
}
cpu->dtb_compatible = arm_host_cpu_features.dtb_compatible;
cpu->isar = arm_host_cpu_features.isar;
cpu->env.features = arm_host_cpu_features.features;
cpu->midr = arm_host_cpu_features.midr;
cpu->reset_sctlr = arm_host_cpu_features.reset_sctlr;
}
void hvf_arch_vcpu_destroy(CPUState *cpu)
{
}
int hvf_arch_init_vcpu(CPUState *cpu)
{
ARMCPU *arm_cpu = ARM_CPU(cpu);
CPUARMState *env = &arm_cpu->env;
uint32_t sregs_match_len = ARRAY_SIZE(hvf_sreg_match);
uint32_t sregs_cnt = 0;
uint64_t pfr;
hv_return_t ret;
int i;
env->aarch64 = true;
asm volatile("mrs %0, cntfrq_el0" : "=r"(arm_cpu->gt_cntfrq_hz));
/* Allocate enough space for our sysreg sync */
arm_cpu->cpreg_indexes = g_renew(uint64_t, arm_cpu->cpreg_indexes,
sregs_match_len);
arm_cpu->cpreg_values = g_renew(uint64_t, arm_cpu->cpreg_values,
sregs_match_len);
arm_cpu->cpreg_vmstate_indexes = g_renew(uint64_t,
arm_cpu->cpreg_vmstate_indexes,
sregs_match_len);
arm_cpu->cpreg_vmstate_values = g_renew(uint64_t,
arm_cpu->cpreg_vmstate_values,
sregs_match_len);
memset(arm_cpu->cpreg_values, 0, sregs_match_len * sizeof(uint64_t));
/* Populate cp list for all known sysregs */
for (i = 0; i < sregs_match_len; i++) {
const ARMCPRegInfo *ri;
uint32_t key = hvf_sreg_match[i].key;
ri = get_arm_cp_reginfo(arm_cpu->cp_regs, key);
if (ri) {
assert(!(ri->type & ARM_CP_NO_RAW));
hvf_sreg_match[i].cp_idx = sregs_cnt;
arm_cpu->cpreg_indexes[sregs_cnt++] = cpreg_to_kvm_id(key);
} else {
hvf_sreg_match[i].cp_idx = -1;
}
}
arm_cpu->cpreg_array_len = sregs_cnt;
arm_cpu->cpreg_vmstate_array_len = sregs_cnt;
assert(write_cpustate_to_list(arm_cpu, false));
/* Set CP_NO_RAW system registers on init */
ret = hv_vcpu_set_sys_reg(cpu->accel->fd, HV_SYS_REG_MIDR_EL1,
arm_cpu->midr);
assert_hvf_ok(ret);
ret = hv_vcpu_set_sys_reg(cpu->accel->fd, HV_SYS_REG_MPIDR_EL1,
arm_cpu->mp_affinity);
assert_hvf_ok(ret);
ret = hv_vcpu_get_sys_reg(cpu->accel->fd, HV_SYS_REG_ID_AA64PFR0_EL1, &pfr);
assert_hvf_ok(ret);
pfr |= env->gicv3state ? (1 << 24) : 0;
ret = hv_vcpu_set_sys_reg(cpu->accel->fd, HV_SYS_REG_ID_AA64PFR0_EL1, pfr);
assert_hvf_ok(ret);
/* We're limited to underlying hardware caps, override internal versions */
ret = hv_vcpu_get_sys_reg(cpu->accel->fd, HV_SYS_REG_ID_AA64MMFR0_EL1,
&arm_cpu->isar.id_aa64mmfr0);
assert_hvf_ok(ret);
return 0;
}