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Fix: HV: VM OS failed to assign new address to pci-vuart BARs

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When wrong BAR address is set for pci-vuart, OS may assign a
new BAR address to it. Pci-vuart BAR can't be reprogrammed,
for its wrong fixed value. That can may because pci_vbar.fixed and
pci_vbar.type has overlap in abstraction, pci_vbar.fixed
has a confusing name, pci_vbar.type has PCIBAR_MEM64HI which is not
really a type of pci BARs.
So replace pci_vbar.type with pci_vbar.is_mem64hi, and change
pci_vbar.fixed to an union type with new name pci_vbar.bar_type.

Tracked-On: #5491
Signed-off-by: Tao Yuhong <yuhong.tao@intel.com>
This commit is contained in:
Tao Yuhong
2020-11-10 08:39:52 -05:00
committed by acrnsi-robot
parent 08bafdffc6
commit 84752ab229
8 changed files with 60 additions and 68 deletions
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4
hypervisor/include/dm/vpci.h
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@@ -38,11 +38,11 @@
#define VDEV_LIST_HASHSIZE (1U << VDEV_LIST_HASHBITS)
struct pci_vbar {
enum pci_bar_type type;
bool is_mem64hi;;
uint64_t size; /* BAR size */
uint64_t base_gpa; /* BAR guest physical address */
uint64_t base_hpa; /* BAR host physical address */
uint32_t fixed; /* BAR fix memory type encoding */
union pci_bar_type bar_type;
uint32_t mask; /* BAR size mask */
};