github/acrn-hypervisor
1
0
Fork 0
mirror of https://github.com/projectacrn/acrn-hypervisor.git synced 2026-01-05 15:45:05 +00:00
Code Issues Projects Releases Wiki Activity

Fix: HV: keep reshuffling on VBARs

Browse Source 
The commit 'Fix: HV: VM OS failed to assign new address to pci-vuart
BARs' need more reshuffle.

Tracked-On: #5491
Signed-off-by: Tao Yuhong <yuhong.tao@intel.com>
Signed-off-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Tao Yuhong
2021-01-11 10:41:31 -05:00
committed by wenlingz
parent 5c5d272358
commit 6c6fa5f340
6 changed files with 72 additions and 61 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
hypervisor/include/hw/pci.h
View File

@@ -203,16 +203,22 @@ union pci_bdf {
} fields;
};
/*
* The next data structure is to reflect the format of PCI BAR base on the PCI sepc.
*/
union pci_bar_type {
uint32_t bits;
struct {
uint8_t indicator :1; /* BITs[0], mapped to I/O space if read as 1 */
uint8_t reserved :1; /* BITs[1], reserved */
uint32_t indicator :1; /* BITs[0], mapped to I/O space if read as 1 */
uint32_t reserved :1; /* BITs[1], reserved and must be "0" per spec. */
uint32_t reserved2 : 30;
} io_space;
struct {
uint8_t indicator :1; /* BITs[0], mapped to memory space if read as 0 */
uint8_t mem_type :2; /* BITs[1:2], 32-bit address if read as 00b, 64-bit address as 01b */
uint8_t prefetchable :1; /* BITs[3], set to 1b if the data is prefetchable and set to 0b otherwise */
uint32_t indicator :1; /* BITs[0], mapped to memory space if read as 0 */
uint32_t mem_type :2; /* BITs[1:2], 32-bit address if read as 00b, 64-bit address as 01b */
uint32_t prefetchable :1; /* BITs[3], set to 1b if the data is prefetchable and set to 0b otherwise */
uint32_t reserved2 : 28;
} mem_space;
};
@@ -309,34 +315,6 @@ static inline bool is_bar_offset(uint32_t nr_bars, uint32_t offset)
return ret;
}
static inline bool is_pci_io_bar(uint32_t val)
{
union pci_bar_type bar_type = {.bits = val};
return (bar_type.io_space.indicator == 1U);
}
static inline bool is_pci_mem_bar(uint32_t val)
{
union pci_bar_type bar_type = {.bits = val};
return ((bar_type.mem_space.indicator == 0U));
}
static inline bool is_pci_mem32_bar(uint32_t val)
{
union pci_bar_type bar_type = {.bits = val};
return (is_pci_mem_bar(val) && (bar_type.mem_space.mem_type == 0U));
}
static inline bool is_pci_mem64_bar(uint32_t val)
{
union pci_bar_type bar_type = {.bits = val};
return (is_pci_mem_bar(val) && (bar_type.mem_space.mem_type == 2U));
}
static inline bool bdf_is_equal(union pci_bdf a, union pci_bdf b)
{
return (a.value == b.value);