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HV: add get_vbar_base() to get vbar base address in 64-bit

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vbar base can be built by using the base address fields stored in
struct pci_bar's reg member.

get_vbar_base: return vbar's base address in 64-bit. For 64-bit MMIO bar, its lower 32-bits
base address and upper 32-bits base are combined into one 64-bit base address

And changed related code to use get_vbar_base to get vbar base address in
64-bit.

Tracked-On: #3241
Signed-off-by: dongshen <dongsheng.x.zhang@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
dongshen 2019-06-27 16:05:38 -07:00 committed by ACRN System Integration
parent 7a2f52441b
commit 65ca6ae498
1 changed files with 15 additions and 2 deletions
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17
hypervisor/dm/vpci/pci_pt.c
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@ -103,6 +103,17 @@ static uint64_t pci_bar_2_bar_base(const struct pci_bar *pbars, uint32_t nr_bars
return base;
}
/**
* @brief get vbar's full base address in 64-bit
* For 64-bit MMIO bar, its lower 32-bits base address and upper 32-bits base are combined
* into one 64-bit base address
* @pre vdev != NULL
*/
static uint64_t get_vbar_base(const struct pci_vdev *vdev, uint32_t idx)
{
return pci_bar_2_bar_base(&vdev->bar[0], vdev->nr_bars, idx);
}
/**
* @brief get pbar's full address in 64-bit
* For 64-bit MMIO bar, its lower 32-bits base address and upper 32-bits base are combined
@ -158,9 +169,10 @@ void vdev_pt_remap_msix_table_bar(struct pci_vdev *vdev)
pbar = &pdev->bar[msix->table_bar];
if (pbar != NULL) {
uint64_t pbar_base = get_pbar_base(pdev, msix->table_bar); /* pbar (hpa) */
msix->mmio_hpa = pbar_base;
if (is_prelaunched_vm(vdev->vpci->vm)) {
msix->mmio_gpa = vdev->bar[msix->table_bar].base;
msix->mmio_gpa = get_vbar_base(vdev, msix->table_bar);
} else {
msix->mmio_gpa = sos_vm_hpa2gpa(pbar_base);
}
@ -250,9 +262,10 @@ static void vdev_pt_remap_generic_mem_vbar(const struct pci_vdev *vdev, uint32_t
{
struct acrn_vm *vm = vdev->vpci->vm;
/* If the old vbar is mapped before, unmap it first */
if (vdev->bar[idx].base != 0UL) {
ept_del_mr(vm, (uint64_t *)vm->arch_vm.nworld_eptp,
vdev->bar[idx].base,
vdev->bar[idx].base, /* GPA (old vbar) */
vdev->bar[idx].size);
}