[xen staging] xen/arm: Activate TID3 in HCR_EL2

[patchbot@xxxxxxx]

commit 6ea3e32a5e0e6ba0f568aa5fd5a6b016c0c21ca0
Author:     Bertrand Marquis <bertrand.marquis@xxxxxxx>
AuthorDate: Thu Dec 17 15:38:08 2020 +0000
Commit:     Stefano Stabellini <sstabellini@xxxxxxxxxx>
CommitDate: Mon Jan 4 11:27:32 2021 -0800

    xen/arm: Activate TID3 in HCR_EL2
    
    Activate TID3 bit in HCR register when starting a guest.
    This will trap all coprecessor ID registers so that we can give to guest
    values corresponding to what they can actually use and mask some
    features to guests even though they would be supported by the underlying
    hardware (like SVE or MPAM).
    
    Signed-off-by: Bertrand Marquis <bertrand.marquis@xxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
 xen/arch/arm/traps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/arm/traps.c b/xen/arch/arm/traps.c
index 28d9d64558..c1a9ad6056 100644
--- a/xen/arch/arm/traps.c
+++ b/xen/arch/arm/traps.c
@@ -98,7 +98,7 @@ register_t get_default_hcr_flags(void)
 {
     return  (HCR_PTW|HCR_BSU_INNER|HCR_AMO|HCR_IMO|HCR_FMO|HCR_VM|
              (vwfi != NATIVE ? (HCR_TWI|HCR_TWE) : 0) |
-             HCR_TSC|HCR_TAC|HCR_SWIO|HCR_TIDCP|HCR_FB|HCR_TSW);
+             HCR_TID3|HCR_TSC|HCR_TAC|HCR_SWIO|HCR_TIDCP|HCR_FB|HCR_TSW);
 }
 
 static enum {
--
generated by git-patchbot for /home/xen/git/xen.git#staging