lkml.org 
[lkml]   [2023]   [Feb]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH v2 27/29] LoongArch: KVM: Implement vcpu world switch
From
On 2/20/23 07:57, Tianrui Zhao wrote:
> + /* Load Guest gprs */
> + ld.d $r1, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 1)
> + ld.d $r2, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 2)
> + ld.d $r3, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 3)
> + ld.d $r4, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 4)
> + ld.d $r5, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 5)
> + ld.d $r7, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 7)
> + ld.d $r8, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 8)
> + ld.d $r9, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 9)
> + ld.d $r10, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 10)
> + ld.d $r11, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 11)
> + ld.d $r12, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 12)
> + ld.d $r13, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 13)
> + ld.d $r14, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 14)
> + ld.d $r15, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 15)
> + ld.d $r16, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 16)
> + ld.d $r17, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 17)
> + ld.d $r18, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 18)
> + ld.d $r19, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 19)
> + ld.d $r20, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 20)
> + ld.d $r21, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 21)
> + ld.d $r22, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 22)
> + ld.d $r23, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 23)
> + ld.d $r24, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 24)
> + ld.d $r25, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 25)
> + ld.d $r26, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 26)
> + ld.d $r27, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 27)
> + ld.d $r28, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 28)
> + ld.d $r29, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 29)
> + ld.d $r30, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 30)
> + ld.d $r31, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * 31)
> + /* Load KVM_ARCH register */
> + ld.d \KVM_ARCH, \KVM_ARCH, (KVM_ARCH_GGPR + 8 * \GPRNUM)

This in practice relies on KVM_ARCH being a2 so please remove the
KVM_ARCH and GPRNUM arguments from the macro; just replace \KVM_ARCH
with a2 as needed.

Also, in these ld.d and st.d sequences you may want to use the ABI names
instead of the rNN names, so it's clearer that you are skipping the
KVM_ARCH register.

Paolo

\
 
 \ /
  Last update: 2023-03-27 00:29    [W:0.417 / U:0.528 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site