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hv: unmap software region of pre-RTVM from Service VM EPT

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Accessing to software SRAM region is not allowed when
 software SRAM is pass-thru to prelaunch RTVM.

 This patch removes software SRAM region from service VM
 EPT if it is enabled for prelaunch RTVM.

Tracked-On: #5649
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Yonghua Huang
2021-02-08 20:56:44 +08:00
committed by wenlingz
parent f7842878ae
commit 30497bdb85
2 changed files with 7 additions and 4 deletions
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2
hypervisor/include/arch/x86/rtct.h
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@@ -21,7 +21,7 @@
#define RTCT_ENTRY_TYPE_RT_IOMMU 8U
#define RTCT_ENTRY_TYPE_MEM_HIERARCHY_LATENCY 9U
#if !defined(PRE_RTVM_SW_SRAM_BASE_GPA)
#if !defined(PRE_RTVM_SW_SRAM_ENABLED)
/*
* PRE_RTVM_SW_SRAM_BASE_GPA is for Prelaunch VM only and
* is configured by config tool on platform that Software SRAM is detected.