Hi Helmut, Would you please comment? Thanks. --- Best Regards Junjie Mao

The changelog file is automatically generated from git commit history when building, it should not be tracked in git source tree. Signed-off-by: Jiaqing Zhao <jiaqing.zhao@...> ---

GCC 13 reports "'vm_config' may be used uninitialized" error when compiling partition_epc(). This patch fixes the issue by initializing vm_config outside the loop in partition_epc(). Tracked-On:

Reviewed-by: Jian Jun Chen <jian.jun.chen@...> On 2023/5/26 10:18, Zhou, Wu wrote:

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

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

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

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

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

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

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

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

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,

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