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q35: add config space wmask for SMRAM and ESMRAMC 

Not all bits in SMRAM and ESMRAMC can be changed by the guest.
Add wmask defines accordingly and set them in mch_reset().

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Gerd Hoffmann 2015-04-15 16:48:12 +02:00 committed by Paolo Bonzini
parent 7744752402
commit b66a67d751
2 changed files with 11 additions and 0 deletions
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2
hw/pci-host/q35.c
View File

@ -355,6 +355,8 @@ static void mch_reset(DeviceState *qdev)
d->config[MCH_HOST_BRIDGE_SMRAM] = MCH_HOST_BRIDGE_SMRAM_DEFAULT;
d->config[MCH_HOST_BRIDGE_ESMRAMC] = MCH_HOST_BRIDGE_ESMRAMC_DEFAULT;
d->wmask[MCH_HOST_BRIDGE_SMRAM] = MCH_HOST_BRIDGE_SMRAM_WMASK;
d->wmask[MCH_HOST_BRIDGE_ESMRAMC] = MCH_HOST_BRIDGE_ESMRAMC_WMASK;
mch_update(mch);
}

9
include/hw/pci-host/q35.h
View File

@ -140,6 +140,11 @@ typedef struct Q35PCIHost {
#define MCH_HOST_BRIDGE_UPPER_SYSTEM_BIOS_END 0x100000
#define MCH_HOST_BRIDGE_SMRAM_DEFAULT \
MCH_HOST_BRIDGE_SMRAM_C_BASE_SEG
#define MCH_HOST_BRIDGE_SMRAM_WMASK \
(MCH_HOST_BRIDGE_SMRAM_D_OPEN | \
MCH_HOST_BRIDGE_SMRAM_D_CLS | \
MCH_HOST_BRIDGE_SMRAM_D_LCK | \
MCH_HOST_BRIDGE_SMRAM_G_SMRAME)
#define MCH_HOST_BRIDGE_ESMRAMC 0x9e
#define MCH_HOST_BRIDGE_ESMRAMC_H_SMRAME ((uint8_t)(1 << 7))
@ -156,6 +161,10 @@ typedef struct Q35PCIHost {
(MCH_HOST_BRIDGE_ESMRAMC_SM_CACHE | \
MCH_HOST_BRIDGE_ESMRAMC_SM_L1 | \
MCH_HOST_BRIDGE_ESMRAMC_SM_L2)
#define MCH_HOST_BRIDGE_ESMRAMC_WMASK \
(MCH_HOST_BRIDGE_ESMRAMC_H_SMRAME | \
MCH_HOST_BRIDGE_ESMRAMC_TSEG_SZ_MASK | \
MCH_HOST_BRIDGE_ESMRAMC_T_EN)
/* D1:F0 PCIE* port*/
#define MCH_PCIE_DEV 1