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OvmfPkg: widen PcdQ35TsegMbytes to UINT16

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Widen PcdQ35TsegMbytes to UINT16, in preparation for setting it
dynamically to the QEMU-advertized extended TSEG size (which is 16-bits
wide).

Cc: Jordan Justen <jordan.l.justen@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
This commit is contained in:
Laszlo Ersek
2017-07-04 12:27:24 +02:00
parent 253d81c71f
commit 5b31f660c9
3 changed files with 7 additions and 7 deletions
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6
OvmfPkg/SmmAccess/SmmAccessPei.c
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@@ -319,7 +319,7 @@ SmmAccessPeiEntryPoint (
// Set TSEG Memory Base.
//
PciWrite32 (DRAMC_REGISTER_Q35 (MCH_TSEGMB),
(TopOfLowRamMb - FixedPcdGet8 (PcdQ35TsegMbytes)) << MCH_TSEGMB_MB_SHIFT);
(TopOfLowRamMb - FixedPcdGet16 (PcdQ35TsegMbytes)) << MCH_TSEGMB_MB_SHIFT);
//
// Set TSEG size, and disable TSEG visibility outside of SMM. Note that the
@@ -327,8 +327,8 @@ SmmAccessPeiEntryPoint (
// *restricted* to SMM.
//
EsmramcVal &= ~(UINT32)MCH_ESMRAMC_TSEG_MASK;
EsmramcVal |= FixedPcdGet8 (PcdQ35TsegMbytes) == 8 ? MCH_ESMRAMC_TSEG_8MB :
FixedPcdGet8 (PcdQ35TsegMbytes) == 2 ? MCH_ESMRAMC_TSEG_2MB :
EsmramcVal |= FixedPcdGet16 (PcdQ35TsegMbytes) == 8 ? MCH_ESMRAMC_TSEG_8MB :
FixedPcdGet16 (PcdQ35TsegMbytes) == 2 ? MCH_ESMRAMC_TSEG_2MB :
MCH_ESMRAMC_TSEG_1MB;
EsmramcVal |= MCH_ESMRAMC_T_EN;
PciWrite8 (DRAMC_REGISTER_Q35 (MCH_ESMRAMC), EsmramcVal);