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hv: correctly grant DRHD register access rights to hypervisor

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Need to call hv_access_memory_region_update() explicitly for DRHD
registers to correctly grant access rights for hypervisor.

Currently, other hv_access_memory_region_update() calls happen to
cover the DRHD addresses for currently supported platforms.

Tracked-On: #3194
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
This commit is contained in:
Zide Chen 2019-06-04 10:53:07 -07:00 committed by ACRN System Integration
parent c71cf753eb
commit 9e91f14bec
1 changed files with 3 additions and 0 deletions
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3
hypervisor/arch/x86/vtd.c
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@ -213,6 +213,9 @@ static int32_t register_hrhd_units(void)
drhd_rt->index = i;
drhd_rt->drhd = &platform_dmar_info->drhd_units[i];
drhd_rt->dmar_irq = IRQ_INVALID;
hv_access_memory_region_update(drhd_rt->drhd->reg_base_addr, PAGE_SIZE);
ret = dmar_register_hrhd(drhd_rt);
if (ret != 0) {
break;