Re: [Qemu-devel] [PATCH 18/31] q35: fix ESMRAMC default

[Gerd Hoffmann <kraxel@redhat.com>]

On Mo, 2015-05-11 at 15:49 +0200, Paolo Bonzini wrote:
> From: Gerd Hoffmann <kraxel@redhat.com>

[ more verbose commit message for squashing in ]

The cache bits in ESMRAMC are hardcoded to 1 (=disabled) according to
the q35 mch specs.  Add and use a define with this default.

While being at it also update the SMRAM default to use the name (no code
change, just makes things a bit more readable).

> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
>  hw/pci-host/q35.c         | 1 +
>  include/hw/pci-host/q35.h | 7 ++++++-
>  2 files changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/hw/pci-host/q35.c b/hw/pci-host/q35.c
> index 35b89da..8471d7a 100644
> --- a/hw/pci-host/q35.c
> +++ b/hw/pci-host/q35.c
> @@ -351,6 +351,7 @@ static void mch_reset(DeviceState *qdev)
>                   MCH_HOST_BRIDGE_PCIEXBAR_DEFAULT);
>  
>      d->config[MCH_HOST_BRIDGE_SMRAM] = MCH_HOST_BRIDGE_SMRAM_DEFAULT;
> +    d->config[MCH_HOST_BRIDGE_ESMRAMC] = MCH_HOST_BRIDGE_ESMRAMC_DEFAULT;
>  
>      mch_update(mch);
>  }
> diff --git a/include/hw/pci-host/q35.h b/include/hw/pci-host/q35.h
> index 0fff6a2..d3c7bbb 100644
> --- a/include/hw/pci-host/q35.h
> +++ b/include/hw/pci-host/q35.h
> @@ -128,7 +128,6 @@ typedef struct Q35PCIHost {
>  
>  #define MCH_HOST_BRIDGE_SMRAM                  0x9d
>  #define MCH_HOST_BRIDGE_SMRAM_SIZE             2
> -#define MCH_HOST_BRIDGE_SMRAM_DEFAULT          ((uint8_t)0x2)
>  #define MCH_HOST_BRIDGE_SMRAM_D_OPEN           ((uint8_t)(1 << 6))
>  #define MCH_HOST_BRIDGE_SMRAM_D_CLS            ((uint8_t)(1 << 5))
>  #define MCH_HOST_BRIDGE_SMRAM_D_LCK            ((uint8_t)(1 << 4))
> @@ -139,6 +138,8 @@ typedef struct Q35PCIHost {
>  #define MCH_HOST_BRIDGE_SMRAM_C_END            0xc0000
>  #define MCH_HOST_BRIDGE_SMRAM_C_SIZE           0x20000
>  #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_ESMRAMC                0x9e
>  #define MCH_HOST_BRIDGE_ESMRAMC_H_SMRAME       ((uint8_t)(1 << 7))
> @@ -151,6 +152,10 @@ typedef struct Q35PCIHost {
>  #define MCH_HOST_BRIDGE_ESMRAMC_TSEG_SZ_2MB    ((uint8_t)(0x1 << 1))
>  #define MCH_HOST_BRIDGE_ESMRAMC_TSEG_SZ_8MB    ((uint8_t)(0x2 << 1))
>  #define MCH_HOST_BRIDGE_ESMRAMC_T_EN           ((uint8_t)1)
> +#define MCH_HOST_BRIDGE_ESMRAMC_DEFAULT \
> +    (MCH_HOST_BRIDGE_ESMRAMC_SM_CACHE | \
> +     MCH_HOST_BRIDGE_ESMRAMC_SM_L1 |    \
> +     MCH_HOST_BRIDGE_ESMRAMC_SM_L2)
>  
>  /* D1:F0 PCIE* port*/
>  #define MCH_PCIE_DEV                           1