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| author | Liu Yu-B13201 <Yu.Liu@freescale.com> | 2012-03-15 14:52:13 +0400 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2012-05-30 13:43:10 +0400 |
| commit | 2e1ae9c07df5956ebab19144aa0da58ea37c9f69 (patch) | |
| tree | 5ec9b74d22b72af3691897921ca6bce76ea7d4aa /arch/powerpc/kernel/kvm.c | |
| parent | b48b2c3e50433ff6f7e46186daa7f986bd960215 (diff) | |
| download | linux-2e1ae9c07df5956ebab19144aa0da58ea37c9f69.tar.xz | |
KVM: PPC: Factor out guest epapr initialization
epapr paravirtualization support is now a Kconfig
selectable option
Signed-off-by: Liu Yu <yu.liu@freescale.com>
[stuart.yoder@freescale.com: misc minor fixes, description update]
Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/kernel/kvm.c')
| -rw-r--r-- | arch/powerpc/kernel/kvm.c | 28 |
1 files changed, 3 insertions, 25 deletions
diff --git a/arch/powerpc/kernel/kvm.c b/arch/powerpc/kernel/kvm.c index 62bdf2389669..1c13307e0308 100644 --- a/arch/powerpc/kernel/kvm.c +++ b/arch/powerpc/kernel/kvm.c @@ -31,6 +31,7 @@ #include <asm/cacheflush.h> #include <asm/disassemble.h> #include <asm/ppc-opcode.h> +#include <asm/epapr_hcalls.h> #define KVM_MAGIC_PAGE (-4096L) #define magic_var(x) KVM_MAGIC_PAGE + offsetof(struct kvm_vcpu_arch_shared, x) @@ -726,7 +727,7 @@ unsigned long kvm_hypercall(unsigned long *in, unsigned long register r11 asm("r11") = nr; unsigned long register r12 asm("r12"); - asm volatile("bl kvm_hypercall_start" + asm volatile("bl epapr_hypercall_start" : "=r"(r0), "=r"(r3), "=r"(r4), "=r"(r5), "=r"(r6), "=r"(r7), "=r"(r8), "=r"(r9), "=r"(r10), "=r"(r11), "=r"(r12) @@ -747,29 +748,6 @@ unsigned long kvm_hypercall(unsigned long *in, } EXPORT_SYMBOL_GPL(kvm_hypercall); -static int kvm_para_setup(void) -{ - extern u32 kvm_hypercall_start; - struct device_node *hyper_node; - u32 *insts; - int len, i; - - hyper_node = of_find_node_by_path("/hypervisor"); - if (!hyper_node) - return -1; - - insts = (u32*)of_get_property(hyper_node, "hcall-instructions", &len); - if (len % 4) - return -1; - if (len > (4 * 4)) - return -1; - - for (i = 0; i < (len / 4); i++) - kvm_patch_ins(&(&kvm_hypercall_start)[i], insts[i]); - - return 0; -} - static __init void kvm_free_tmp(void) { unsigned long start, end; @@ -791,7 +769,7 @@ static int __init kvm_guest_init(void) if (!kvm_para_available()) goto free_tmp; - if (kvm_para_setup()) + if (!epapr_paravirt_enabled) goto free_tmp; if (kvm_para_has_feature(KVM_FEATURE_MAGIC_PAGE)) |