On 10/31/23 15:46, Anthony Harivel wrote:
+
+static uint64_t vmsr_read_msr(uint32_t reg, unsigned int cpu_id)
+{
+int fd;
+uint64_t data;
+
+char path[MAX_PATH_LEN];
+snprintf(path, MAX_PATH_LEN, "/dev/cpu/%u/msr", cpu_id);
If you allow any CPU here, the thread id is really unus
On Tue, Oct 31, 2023 at 03:46:02PM +0100, Anthony Harivel wrote:
> Introduce a privileged helper to access RAPL MSR.
>
> The privileged helper tool, qemu-vmsr-helper, is designed to provide
> virtual machines with the ability to read specific RAPL (Running Average
> Power Limit) MSRs without requi
On Tue, Oct 31, 2023 at 03:46:02PM +0100, Anthony Harivel wrote:
> Introduce a privileged helper to access RAPL MSR.
>
> The privileged helper tool, qemu-vmsr-helper, is designed to provide
> virtual machines with the ability to read specific RAPL (Running Average
> Power Limit) MSRs without requi
Introduce a privileged helper to access RAPL MSR.
The privileged helper tool, qemu-vmsr-helper, is designed to provide
virtual machines with the ability to read specific RAPL (Running Average
Power Limit) MSRs without requiring CAP_SYS_RAWIO privileges or relying
on external, out-of-tree patches.
