Re: [PATCH 5.10 048/104] KVM: x86: cleanup CR3 reserved bits checks

2021-02-15 Thread Paolo Bonzini
On 15/02/21 19:46, Pavel Machek wrote: Hi! [ Upstream commit c1c35cf78bfab31b8cb455259524395c9e4c7cd6 ] If not in long mode, the low bits of CR3 are reserved but not enforced to be zero, so remove those checks. If in long mode, however, the MBZ bits extend down to the highest physical address

Re: [PATCH 5.10 048/104] KVM: x86: cleanup CR3 reserved bits checks

2021-02-15 Thread Pavel Machek
Hi! > [ Upstream commit c1c35cf78bfab31b8cb455259524395c9e4c7cd6 ] > > If not in long mode, the low bits of CR3 are reserved but not enforced to > be zero, so remove those checks. If in long mode, however, the MBZ bits > extend down to the highest physical address bit of the guest, excluding > t

[PATCH 5.10 048/104] KVM: x86: cleanup CR3 reserved bits checks

2021-02-15 Thread Greg Kroah-Hartman
From: Paolo Bonzini [ Upstream commit c1c35cf78bfab31b8cb455259524395c9e4c7cd6 ] If not in long mode, the low bits of CR3 are reserved but not enforced to be zero, so remove those checks. If in long mode, however, the MBZ bits extend down to the highest physical address bit of the guest, exclud