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hv: Replace dynamic memory allocation for I/O bitmaps

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-- Replace pointer with static memory for io_bitmap
  inside structure vm_arch.
-- Refine allow_guest_pio_access/deny_guest_pio_access

Tracked-On: #861
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Anthony Xu <anthony.xu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Mingqiang Chi
2018-09-07 14:11:08 +08:00
committed by lijinxia
parent eada04b800
commit 02e7edc063
5 changed files with 25 additions and 42 deletions
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4
hypervisor/arch/x86/vmx.c
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@@ -1022,10 +1022,10 @@ static void init_exec_ctrl(struct vcpu *vcpu)
exec_vmwrite32(VMX_CR3_TARGET_COUNT, 0U);
/* Set up IO bitmap register A and B - pg 2902 24.6.4 */
value64 = hva2hpa(vm->arch_vm.iobitmap[0]);
value64 = hva2hpa(vm->arch_vm.io_bitmap);
exec_vmwrite64(VMX_IO_BITMAP_A_FULL, value64);
pr_dbg("VMX_IO_BITMAP_A: 0x%016llx ", value64);
value64 = hva2hpa(vm->arch_vm.iobitmap[1]);
value64 = hva2hpa(&(vm->arch_vm.io_bitmap[CPU_PAGE_SIZE]));
exec_vmwrite64(VMX_IO_BITMAP_B_FULL, value64);
pr_dbg("VMX_IO_BITMAP_B: 0x%016llx ", value64);