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| author | Gerd Hoffmann <kraxel@redhat.com> | 2020-09-15 14:08:55 +0200 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2020-09-17 14:16:19 +0200 |
| commit | d4e9d577be587c6f2e41557f7e4ac0b185f0bb1b (patch) | |
| tree | 6c9b31d9c82d6045c7338f6260ff22e38f5c52c5 | |
| parent | 7bf2567c12320731b115af83f4991bbc9203df70 (diff) | |
| download | qemu-d4e9d577be587c6f2e41557f7e4ac0b185f0bb1b.zip qemu-d4e9d577be587c6f2e41557f7e4ac0b185f0bb1b.tar.gz qemu-d4e9d577be587c6f2e41557f7e4ac0b185f0bb1b.tar.bz2 | |
microvm: make virtio irq base runtime configurable
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20200915120909.20838-8-kraxel@redhat.com
| -rw-r--r-- | hw/i386/microvm.c | 11 | ||||
| -rw-r--r-- | include/hw/i386/microvm.h | 2 |
2 files changed, 8 insertions, 5 deletions
diff --git a/hw/i386/microvm.c b/hw/i386/microvm.c index b1dc7e4..e4501f2 100644 --- a/hw/i386/microvm.c +++ b/hw/i386/microvm.c @@ -121,10 +121,11 @@ static void microvm_devices_init(MicrovmMachineState *mms) kvmclock_create(); + mms->virtio_irq_base = 5; for (i = 0; i < VIRTIO_NUM_TRANSPORTS; i++) { sysbus_create_simple("virtio-mmio", VIRTIO_MMIO_BASE + i * 512, - x86ms->gsi[VIRTIO_IRQ_BASE + i]); + x86ms->gsi[mms->virtio_irq_base + i]); } /* Optional and legacy devices */ @@ -227,7 +228,7 @@ static void microvm_memory_init(MicrovmMachineState *mms) x86ms->ioapic_as = &address_space_memory; } -static gchar *microvm_get_mmio_cmdline(gchar *name) +static gchar *microvm_get_mmio_cmdline(gchar *name, uint32_t virtio_irq_base) { gchar *cmdline; gchar *separator; @@ -247,7 +248,7 @@ static gchar *microvm_get_mmio_cmdline(gchar *name) ret = g_snprintf(cmdline, VIRTIO_CMDLINE_MAXLEN, " virtio_mmio.device=512@0x%lx:%ld", VIRTIO_MMIO_BASE + index * 512, - VIRTIO_IRQ_BASE + index); + virtio_irq_base + index); if (ret < 0 || ret >= VIRTIO_CMDLINE_MAXLEN) { g_free(cmdline); return NULL; @@ -259,6 +260,7 @@ static gchar *microvm_get_mmio_cmdline(gchar *name) static void microvm_fix_kernel_cmdline(MachineState *machine) { X86MachineState *x86ms = X86_MACHINE(machine); + MicrovmMachineState *mms = MICROVM_MACHINE(machine); BusState *bus; BusChild *kid; char *cmdline; @@ -282,7 +284,8 @@ static void microvm_fix_kernel_cmdline(MachineState *machine) BusState *mmio_bus = &mmio_virtio_bus->parent_obj; if (!QTAILQ_EMPTY(&mmio_bus->children)) { - gchar *mmio_cmdline = microvm_get_mmio_cmdline(mmio_bus->name); + gchar *mmio_cmdline = microvm_get_mmio_cmdline + (mmio_bus->name, mms->virtio_irq_base); if (mmio_cmdline) { char *newcmd = g_strjoin(NULL, cmdline, mmio_cmdline, NULL); g_free(mmio_cmdline); diff --git a/include/hw/i386/microvm.h b/include/hw/i386/microvm.h index 36dbcdd..8759369 100644 --- a/include/hw/i386/microvm.h +++ b/include/hw/i386/microvm.h @@ -28,7 +28,6 @@ /* Platform virtio definitions */ #define VIRTIO_MMIO_BASE 0xfeb00000 -#define VIRTIO_IRQ_BASE 5 #define VIRTIO_NUM_TRANSPORTS 8 #define VIRTIO_CMDLINE_MAXLEN 64 @@ -59,6 +58,7 @@ struct MicrovmMachineState { bool auto_kernel_cmdline; /* Machine state */ + uint32_t virtio_irq_base; bool kernel_cmdline_fixed; }; typedef struct MicrovmMachineState MicrovmMachineState; |