github/acrn-hypervisor
1
0
Fork 0
mirror of https://github.com/projectacrn/acrn-hypervisor.git synced 2025-09-23 01:37:44 +00:00
Code Issues Projects Releases Wiki Activity

HV: RDT: add CDP support in ACRN

Browse Source 
CDP is an extension of CAT. It enables isolation and separate prioritization of
code and data fetches to the L2 or L3 cache in a software configurable manner,
depending on hardware support.

This commit adds a Kconfig switch "CDP_ENABLED" which depends on "RDT_ENABLED".
CDP will be enabled if the capability available and "CDP_ENABLED" is selected.

Tracked-On: #4604
Signed-off-by: Yan, Like <like.yan@intel.com>
Reviewed-by: Vijay Dhanraj <vijay.dhanraj@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Yan, Like
2020-04-09 10:49:00 +08:00
committed by wenlingz
parent 277c668b04
commit 869ccb7ba8
4 changed files with 41 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
hypervisor/include/arch/x86/rdt.h
View File

@@ -30,6 +30,8 @@ struct rdt_info {
uint32_t bitmask; /* A bitmask where each set bit indicates the corresponding cache way
may be used by other entities in the platform (e.g. GPU) */
uint16_t cbm_len; /* Length of Cache mask in bits */
bool is_cdp_enabled; /* True if support CDP */
uint32_t msr_qos_cfg; /* MSR addr to IA32_L3/L2_QOS_CFG */
} cache;
struct rdt_membw {
uint16_t mba_max; /* Max MBA delay throttling value supported */
@@ -42,7 +44,7 @@ struct rdt_info {
struct platform_clos_info *platform_clos_array; /* user configured mask and MSR info for each CLOS*/
};
void init_rdt_cap_info(void);
void init_rdt_info(void);
void setup_clos(uint16_t pcpu_id);
uint64_t clos2pqr_msr(uint16_t clos);
bool is_platform_rdt_capable(void);