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linux-user/arm: Do not allocate a commpage at all for M-profile CPUs
Since commit fbd3c4c ("linux-user/arm: Mark the commpage executable") executing bare-metal (linked with rdimon.specs) cortex-M code fails as: $ qemu-arm -cpu cortex-m3 ~/hello.exe.m3 qemu-arm: ../../accel/tcg/user-exec.c:492: page_set_flags: Assertion `last <= GUEST_ADDR_MAX' failed. Aborted (core dumped) Commit 4f5c67f ("linux-user/arm: Take more care allocating commpage") already took care of not allocating a commpage for M-profile CPUs, however it had to be reverted as commit 6cda41d. Re-introduce the M-profile fix from commit 4f5c67f. Fixes: fbd3c4c ("linux-user/arm: Mark the commpage executable") Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1755 Reported-by: Christophe Lyon <christophe.lyon@linaro.org> Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230711153408.68389-1-philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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