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HV: move the ve820 GPU OpRegion address

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The ve820 table' hpa1_low area is divided into two parts, which
is making the code too complicated and causing problems. Moving
the entries that divides the hpa1_low could make things easier.

This patch moves the GPU OpRegion to the tail area of 2G,
consecutive to the acpi data/nvs area.

before:
|<---low_1M--->|
|<---hpa1_low_part1--->|
|<---SSRAM--->|
|<---GPU_OpRegion--->|
|<---hpa1_low_part2--->|
|<---ACPI DATA--->|
|<---ACPI NVS--->|
---2G---

after:
|<---low_1M--->|
|<---hpa1_low_part1--->|
|<---SSRAM--->|
|<---hpa1_low_part2--->|
|<---GPU_OpRegion--->|
|<---ACPI DATA--->|
|<---ACPI NVS--->|
---2G---

Tracked-On: #6674

Signed-off-by: Zhou, Wu <wu.zhou@intel.com>
Reviewed-by: Victor Sun <victor.sun@intel.com>
Reviewed-by: Wang, Yu1 <yu1.wang@intel.com>
This commit is contained in:
Zhou, Wu
2021-09-03 15:48:25 +08:00
committed by wenlingz
parent e00421d5be
commit f1f6fe11c1
3 changed files with 9 additions and 7 deletions
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12
hypervisor/arch/x86/guest/ve820.c
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@@ -15,7 +15,7 @@
#include <ptdev.h>
#define ENTRY_HPA1_LOW_PART1 2U
#define ENTRY_HPA1_LOW_PART2 5U
#define ENTRY_HPA1_LOW_PART2 4U
#define ENTRY_HPA1_HI 9U
static struct e820_entry service_vm_e820[E820_MAX_ENTRIES];
@@ -199,16 +199,16 @@ static const struct e820_entry pre_ve820_template[E820_MAX_ENTRIES] = {
.length = PRE_RTVM_SW_SRAM_MAX_SIZE,
.type = E820_TYPE_RESERVED
},
{ /* part2 of lowmem of hpa1*/
.baseaddr = PRE_RTVM_SW_SRAM_BASE_GPA + PRE_RTVM_SW_SRAM_MAX_SIZE,
.length = GPU_OPREGION_GPA - (PRE_RTVM_SW_SRAM_BASE_GPA + PRE_RTVM_SW_SRAM_MAX_SIZE),
.type = E820_TYPE_RAM
},
{ /* GPU OpRegion for pre-launched VM */
.baseaddr = GPU_OPREGION_GPA,
.length = GPU_OPREGION_SIZE,
.type = E820_TYPE_RESERVED
},
{ /* part2 of lowmem of hpa1*/
.baseaddr = GPU_OPREGION_GPA + GPU_OPREGION_SIZE,
.length = VIRT_ACPI_DATA_ADDR - (GPU_OPREGION_GPA + GPU_OPREGION_SIZE),
.type = E820_TYPE_RAM
},
{ /* ACPI Reclaim */
.baseaddr = VIRT_ACPI_DATA_ADDR,/* consecutive from 0x7fe00000UL */
.length = VIRT_ACPI_DATA_LEN,