Thomas Gleixner d69c1382e1 x86/kvm: Convert FPU handling to a single swap buffer ... For the upcoming AMX support it's necessary to do a proper integration with KVM. Currently KVM allocates two FPU structs which are used for saving the user state of the vCPU thread and restoring the guest state when entering vcpu_run() and doing the reverse operation before leaving vcpu_run(). With the new fpstate mechanism this can be reduced to one extra buffer by swapping the fpstate pointer in current:🧵:fpu. This makes the upcoming support for AMX and XFD simpler because then fpstate information (features, sizes, xfd) are always consistent and it does not require any nasty workarounds. Convert the KVM FPU code over to this new scheme. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20211022185313.019454292@linutronix.de		2021-10-23 16:13:29 +02:00
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asm	x86/kvm: Convert FPU handling to a single swap buffer	2021-10-23 16:13:29 +02:00
uapi/asm	KVM: x86: implement KVM_GUESTDBG_BLOCKIRQ	2021-08-20 16:06:37 -04:00