From fd47bfe5ad423b4b09dc0244bda3b1346fa189ba Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Date: Mon, 21 Dec 2015 12:08:54 +0100 Subject: [PATCH] ivshmem: generalize ivshmem_setup_interrupts MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Call ivshmem_setup_interrupts() with or without MSI, always allocate msi_vectors that is going to be used in all case in the following patch. Signed-off-by: Marc-André Lureau Reviewed-by: Markus Armbruster --- hw/misc/ivshmem.c | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-) diff --git a/hw/misc/ivshmem.c b/hw/misc/ivshmem.c index 50297892fd40..5f33149c91e9 100644 --- a/hw/misc/ivshmem.c +++ b/hw/misc/ivshmem.c @@ -769,18 +769,20 @@ static void ivshmem_reset(DeviceState *d) ivshmem_use_msix(s); } -static int ivshmem_setup_msi(IVShmemState * s) +static int ivshmem_setup_interrupts(IVShmemState *s) { - if (msix_init_exclusive_bar(PCI_DEVICE(s), s->vectors, 1)) { - return -1; - } + /* allocate QEMU callback data for receiving interrupts */ + s->msi_vectors = g_malloc0(s->vectors * sizeof(MSIVector)); - IVSHMEM_DPRINTF("msix initialized (%d vectors)\n", s->vectors); + if (ivshmem_has_feature(s, IVSHMEM_MSI)) { + if (msix_init_exclusive_bar(PCI_DEVICE(s), s->vectors, 1)) { + return -1; + } - /* allocate QEMU char devices for receiving interrupts */ - s->msi_vectors = g_malloc0(s->vectors * sizeof(MSIVector)); + IVSHMEM_DPRINTF("msix initialized (%d vectors)\n", s->vectors); + ivshmem_use_msix(s); + } - ivshmem_use_msix(s); return 0; } @@ -947,9 +949,8 @@ static void pci_ivshmem_realize(PCIDevice *dev, Error **errp) IVSHMEM_DPRINTF("using shared memory server (socket = %s)\n", s->server_chr->filename); - if (ivshmem_has_feature(s, IVSHMEM_MSI) && - ivshmem_setup_msi(s)) { - error_setg(errp, "msix initialization failed"); + if (ivshmem_setup_interrupts(s) < 0) { + error_setg(errp, "failed to initialize interrupts"); return; }