Thermal events are delivered through lapic thermal LVT. Currently ACRN does not support delivering those interrupts to guests by virtual lapic. They need to be virtualized to provide guests some therm

The optional object _CPC declares an interface that allows OSPM to transition the processor into a performance state based on a continuous range of allowable values. It is associated with HWP on intel

Changes made by this patch includes: 1. Emulate HWP and pstate MSRs/CPUIDs. Those are exposed to guest when the GUEST_FLAG_VHWP is set: - CPUID[6].EAX[7,9,10]: MSR_IA32_PM_ENABLE(enabled by hv, always

When emulating split lock on a target vcpu, we need to stop other vcpus from running. This is done by vcpu_make_request() and resumed by signal_event(). The problem is those actions are not synchronou

This patch emulates the PLATFORM_INFO MSR in hypervisor to make it only visible to Service VM, and only processor ratios (bit 15:8, 47:40 and 55:48) and sample part bit (27) are exponsed. This is inte

This patch emulates the PLATFORM_INFO MSR in hypervisor to make it only visible to Service VM, and only processor ratios (bit 15:8, 47:40 and 55:48) and sample part bit (27) are exponsed. This is inte

add customized parameters in the launch script generation logic. If user specify customized parameters in configurator, we will append them to the dm parameters for launching VMs. v1-->v2: 1. escape s

Set GUEST_FLAG_VHWP guest flag for VMs who own pCPUs. Windows does not manage CPU frequency in virtualized environment, so this flag is not set for waag. Platforms without HWP capability should not ha

When VHWP enabled, return 0 and px_cnt = 0 on ACRN_PMCMD_GET_PX_CNT, so that DM will write _CPC to guests' ACPI. Signed-off-by: Wu Zhou <wu.zhou@...> Reviewed-by: Junjie Mao <junjie.mao@...> --- hyper

Currently CPU frequency control is hidden to guests, and controlled by hypervisor. While it is sufficient in most cases, some guest OS may still need CPU performance info to make multi-core scheduling

Background: Currently CPU frequency control is hidden to guests, and controlled by hypervisor. While it is sufficient in most cases, some guest OS may still need CPU performance info to make multi-cor

When emulating 0xf0 prefix instruction, the design is to stop other vcpu from running, then skip the 0xf0 prefix and insert a mtf vmexit on next instruction. The problem is that before the target vcpu

add customized parameters in the launch script generation logic. If user specify customized parameters in configurator, we will append them to the dm parameters for launching VMs. v1-->v2: 1. escape s

`modprobe msr` will be invoked if no /dev/cpu/#/msr is found. If the "msr" module is built-in that check will pass and no `modprobe msr` should be invoked. v1-->v2: renaming some variable to make code

Thermal events are delivered through lapic thermal LVT. Currently ACRN does not support delivering those interrupts to guests by virtual lapic. They need to be virtualized to provide guests some therm

The optional object _CPC declares an interface that allows OSPM to transition the processor into a performance state based on a continuous range of allowable values. It is associated with HWP on intel

Currently split lock emulation does not work well in CPU sharing scenarios. This has been seen on WAAG, which triggers lots of #AC. The issue is caused by two bugs: 1. When emulating 0xf0 prefix instr

This patch allows service vm to read MSR IA32_PLATFORM_ID (17h) and PLATFORM_INFO (CEh). For the PLATFORM_INFO MSR, only processor ratios (bit 15:8, 47:40 and 55:48) and sample part (bit 27) are passe

Set GUEST_FLAG_VHWP guest flag for VMs who own pCPUs. Windows does not manage CPU frequency in virtualized environment, so this flag is not set for waag. Platforms without HWP capability should not ha

When VHWP enabled, return 0 and px_cnt = 0 on ACRN_PMCMD_GET_PX_CNT, so that DM will write _CPC to guests' ACPI. Signed-off-by: Wu Zhou <wu.zhou@...> --- hypervisor/common/hypercall.c | 16 +++++++++++