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| author | Bharat Bhushan <Bharat.Bhushan@freescale.com> | 2013-01-16 02:24:39 +0400 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2013-02-13 15:56:40 +0400 |
| commit | 1d542d9c2bbca9b99835fef6a938b9ae9dd7ca2a (patch) | |
| tree | b5bc9857625feb811cce562f45ec3cf259739395 /arch/powerpc/kvm/e500.c | |
| parent | ffe129ecd79779221fdb03305049ec8b5a8beb0f (diff) | |
| download | linux-1d542d9c2bbca9b99835fef6a938b9ae9dd7ca2a.tar.xz | |
KVM: PPC: booke: Allow multiple exception types
Current kvmppc_booke_handlers uses the same macro (KVM_HANDLER) and
all handlers are considered to be the same size. This will not be
the case if we want to use different macros for different handlers.
This patch improves the kvmppc_booke_handler so that it can
support different macros for different handlers.
Signed-off-by: Liu Yu <yu.liu@freescale.com>
[bharat.bhushan@freescale.com: Substantial changes]
Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/kvm/e500.c')
| -rw-r--r-- | arch/powerpc/kvm/e500.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/arch/powerpc/kvm/e500.c b/arch/powerpc/kvm/e500.c index b479ed77c515..6dd4de7802bf 100644 --- a/arch/powerpc/kvm/e500.c +++ b/arch/powerpc/kvm/e500.c @@ -491,6 +491,9 @@ static int __init kvmppc_e500_init(void) { int r, i; unsigned long ivor[3]; + /* Process remaining handlers above the generic first 16 */ + unsigned long *handler = &kvmppc_booke_handler_addr[16]; + unsigned long handler_len; unsigned long max_ivor = 0; r = kvmppc_core_check_processor_compat(); @@ -506,15 +509,16 @@ static int __init kvmppc_e500_init(void) ivor[1] = mfspr(SPRN_IVOR33); ivor[2] = mfspr(SPRN_IVOR34); for (i = 0; i < 3; i++) { - if (ivor[i] > max_ivor) - max_ivor = ivor[i]; + if (ivor[i] > ivor[max_ivor]) + max_ivor = i; + handler_len = handler[i + 1] - handler[i]; memcpy((void *)kvmppc_booke_handlers + ivor[i], - kvmppc_handlers_start + (i + 16) * kvmppc_handler_len, - kvmppc_handler_len); + (void *)handler[i], handler_len); } - flush_icache_range(kvmppc_booke_handlers, - kvmppc_booke_handlers + max_ivor + kvmppc_handler_len); + handler_len = handler[max_ivor + 1] - handler[max_ivor]; + flush_icache_range(kvmppc_booke_handlers, kvmppc_booke_handlers + + ivor[max_ivor] + handler_len); return kvm_init(NULL, sizeof(struct kvmppc_vcpu_e500), 0, THIS_MODULE); } |