On Thu, Feb 17, 2022 at 02:44:10PM +0100, Paolo Bonzini wrote:
> On 2/17/22 06:58, Yang Zhong wrote:
> >>+
> >>+if ((mask & XSTATE_XTILE_DATA_MASK) == XSTATE_XTILE_DATA_MASK) {
> >>+bitmask = kvm_arch_get_supported_cpuid(s, 0xd, 0, R_EAX);
> >>+if (!(bitmask &
On 2/17/22 06:58, Yang Zhong wrote:
+
+if ((mask & XSTATE_XTILE_DATA_MASK) == XSTATE_XTILE_DATA_MASK) {
+bitmask = kvm_arch_get_supported_cpuid(s, 0xd, 0, R_EAX);
+if (!(bitmask & XSTATE_XTILE_DATA_MASK)) {
Paolo, last time you suggested below changes for here:
rc =
On Wed, Feb 16, 2022 at 10:04:29PM -0800, Yang Zhong wrote:
> Kernel allocates 4K xstate buffer by default. For XSAVE features
> which require large state component (e.g. AMX), Linux kernel
> dynamically expands the xstate buffer only after the process has
> acquired the necessary permissions.
