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KVM: arm/arm64: vgic: Introduce find_reg_by_id()

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In order to implement vGICv3 CPU interface access, we will need to perform
table lookup of system registers. We would need both index_to_params() and
find_reg() exported for that purpose, but instead we export a single
function which combines them both.

Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@cavium.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Vijaya Kumar K
2017-01-26 19:50:48 +05:30
committed by Marc Zyngier
parent 94574c9488
commit 4b927b94d5
2 changed files with 20 additions and 11 deletions
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4
arch/arm64/kvm/sys_regs.h
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@@ -136,6 +136,10 @@ static inline int cmp_sys_reg(const struct sys_reg_desc *i1,
return i1->Op2 - i2->Op2;
}
const struct sys_reg_desc *find_reg_by_id(u64 id,
struct sys_reg_params *params,
const struct sys_reg_desc table[],
unsigned int num);
#define Op0(_x) .Op0 = _x
#define Op1(_x) .Op1 = _x