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| author | Gerd Hoffmann <kraxel@redhat.com> | 2015-04-14 14:03:22 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-06-05 17:36:40 +0200 |
| commit | 68c77acfb18d28933f17b1c2a842bd936ce7223b (patch) | |
| tree | f1188d1cb28446e862ce9c92f2131389a90e4bcc /include/hw/pci-host | |
| parent | b66a67d7519cb7f980885af5391b1103c42e9b6d (diff) | |
| download | qemu-68c77acfb18d28933f17b1c2a842bd936ce7223b.tar.gz qemu-68c77acfb18d28933f17b1c2a842bd936ce7223b.tar.bz2 qemu-68c77acfb18d28933f17b1c2a842bd936ce7223b.zip | |
q35: implement SMRAM.D_LCK
Once the SMRAM.D_LCK bit has been set by the guest several bits in SMRAM
and ESMRAMC become readonly until the next machine reset. Implement
this by updating the wmask accordingly when the guest sets the lock bit.
As the lock it itself is locked down too we don't need to worry about
the guest clearing the lock bit.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/hw/pci-host')
| -rw-r--r-- | include/hw/pci-host/q35.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/hw/pci-host/q35.h b/include/hw/pci-host/q35.h index 01b8492551..113cbe8190 100644 --- a/include/hw/pci-host/q35.h +++ b/include/hw/pci-host/q35.h @@ -145,6 +145,8 @@ typedef struct Q35PCIHost { MCH_HOST_BRIDGE_SMRAM_D_CLS | \ MCH_HOST_BRIDGE_SMRAM_D_LCK | \ MCH_HOST_BRIDGE_SMRAM_G_SMRAME) +#define MCH_HOST_BRIDGE_SMRAM_WMASK_LCK \ + MCH_HOST_BRIDGE_SMRAM_D_CLS #define MCH_HOST_BRIDGE_ESMRAMC 0x9e #define MCH_HOST_BRIDGE_ESMRAMC_H_SMRAME ((uint8_t)(1 << 7)) @@ -165,6 +167,7 @@ typedef struct Q35PCIHost { (MCH_HOST_BRIDGE_ESMRAMC_H_SMRAME | \ MCH_HOST_BRIDGE_ESMRAMC_TSEG_SZ_MASK | \ MCH_HOST_BRIDGE_ESMRAMC_T_EN) +#define MCH_HOST_BRIDGE_ESMRAMC_WMASK_LCK 0 /* D1:F0 PCIE* port*/ #define MCH_PCIE_DEV 1 |