Re: [RFC PATCH 08/11] kvm: powerpc: book3s: Support building HV and PR KVM as module

Alexander Graf [off-list ref] writes:

On 27.09.2013, at 15:08, Aneesh Kumar K.V wrote:

quoted

Alexander Graf [off-list ref] writes:

quoted

On 27.09.2013, at 12:03, Aneesh Kumar K.V wrote:

quoted

diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c b/arch/powerpc/kvm/book3s_64_mmu_host.c
index fd5b393..775d368 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_host.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_host.c

@@ -27,6 +27,7 @@

#include <asm/machdep.h>
#include <asm/mmu_context.h>
#include <asm/hw_irq.h>
+

Stray whitespace change

will fix

quoted

quoted

#include "trace_pr.h"

#define PTE_SIZE 12

diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c
index b9841ad..20d03c2 100644
--- a/arch/powerpc/kvm/book3s_emulate.c
+++ b/arch/powerpc/kvm/book3s_emulate.c

@@ -172,7 +172,7 @@ int kvmppc_core_emulate_op_pr(struct kvm_run *run, struct kvm_vcpu *vcpu,

			vcpu->arch.mmu.tlbie(vcpu, addr, large);
			break;
		}
-#ifdef CONFIG_KVM_BOOK3S_64_PR
+#ifdef CONFIG_KVM_BOOK3S_PR

Why?

If i have CONFIG_KVM_BOOK3S_64_PR=m  #ifdef CONFIG_KVM_BOOK3S_64_PR will
not work. There is a runtime check I can use IS_ENABLED(). But didn't
want to do those. Hence moved to the symbol which will be set as
CONFIG_KVM_BOOK3S_PR = y

Ah, I see. The naming starts to get really confusing. Could you please
give this a slightly better name, such as
CONFIG_KVM_BOOK3S_PR_POSSIBLE or such, so that it's obvious that this
#ifdef doesn't mean "option is enabled", but instead means "option can
potentially be enabled through a module".

Will do

-aneesh