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hv: CAT is supposed to be enabled in the system level

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In platforms that support CAT, when it is enabled by ACRN, i.e.
IA32_resourceType_MASK_n registers are programmed with customized values,
it has impacts to the whole system.

The per guest flag GUEST_FLAG_CLOS_REQUIRED suggests that CAT may be
enabled in some guests, but not in others who don't have this flag,
which is conceptually incorrect.

This patch removes GUEST_FLAG_CLOS_REQUIRED, and adds a new Kconfig
entry CAT_ENABLED for CAT enabling. When it's enabled, platform_clos_array[]
defines a set of system-wide Class of Service (COS, or CLOS), and the
per guest vm_configs[].clos associates the guest with particular CLOS.

Tracked-On: #2462
Signed-off-by: Zide Chen <zide.chen@intel.com>
This commit is contained in:
Zide Chen
2020-02-05 10:23:07 -08:00
committed by wenlingz
parent 8dcede7693
commit cc6f094926
7 changed files with 21 additions and 14 deletions
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5
hypervisor/include/public/acrn_common.h
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@@ -50,9 +50,8 @@
#define GUEST_FLAG_SECURE_WORLD_ENABLED (1UL << 0U) /* Whether secure world is enabled */
#define GUEST_FLAG_LAPIC_PASSTHROUGH (1UL << 1U) /* Whether LAPIC is passed through */
#define GUEST_FLAG_IO_COMPLETION_POLLING (1UL << 2U) /* Whether need hypervisor poll IO completion */
#define GUEST_FLAG_CLOS_REQUIRED (1UL << 3U) /* Whether CLOS is required */
#define GUEST_FLAG_HIDE_MTRR (1UL << 4U) /* Whether hide MTRR from VM */
#define GUEST_FLAG_RT (1UL << 5U) /* Whether the vm is RT-VM */
#define GUEST_FLAG_HIDE_MTRR (1UL << 3U) /* Whether hide MTRR from VM */
#define GUEST_FLAG_RT (1UL << 4U) /* Whether the vm is RT-VM */
/* TODO: We may need to get this addr from guest ACPI instead of hardcode here */
#define VIRTUAL_PM1A_CNT_ADDR 0x404U