diff mbox series

[v3,06/12] KVM: s390: add kvm reference to struct sie_page2

Message ID 20181128101943.155542-7-mimu@linux.ibm.com (mailing list archive)
State New, archived
Headers show
Series KVM: s390: make use of the GIB | expand

Commit Message

Michael Mueller Nov. 28, 2018, 10:19 a.m. UTC 
Adding the kvm reference to struct sie_page2 will allow to
determine the kvm a given gisa belongs to:

  container_of(gisa, struct sie_page2, gisa)->kvm

This functionality will be required to process a gisa in
gib alert interruption context.

Signed-off-by: Michael Mueller <mimu@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
---
 arch/s390/include/asm/kvm_host.h | 3 ++-
 arch/s390/kvm/kvm-s390.c         | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

Comments

David Hildenbrand Nov. 29, 2018, 1:09 p.m. UTC | #1 
On 28.11.18 11:19, Michael Mueller wrote:
> Adding the kvm reference to struct sie_page2 will allow to
> determine the kvm a given gisa belongs to:
> 
>   container_of(gisa, struct sie_page2, gisa)->kvm
> 
> This functionality will be required to process a gisa in
> gib alert interruption context.
> 
> Signed-off-by: Michael Mueller <mimu@linux.ibm.com>
> Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
> Reviewed-by: Cornelia Huck <cohuck@redhat.com>
> ---
>  arch/s390/include/asm/kvm_host.h | 3 ++-
>  arch/s390/kvm/kvm-s390.c         | 1 +
>  2 files changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
> index 02227457945e..3e3225ea303b 100644
> --- a/arch/s390/include/asm/kvm_host.h
> +++ b/arch/s390/include/asm/kvm_host.h
> @@ -802,7 +802,8 @@ struct sie_page2 {
>  	__u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64];	/* 0x0000 */
>  	struct kvm_s390_crypto_cb crycb;		/* 0x0800 */
>  	struct kvm_s390_gisa gisa;			/* 0x0900 */
> -	u8 reserved920[0x1000 - 0x920];			/* 0x0920 */
> +	struct kvm *kvm;				/* 0x0920 */
> +	u8 reserved928[0x1000 - 0x928];			/* 0x0928 */
>  };
>  
>  struct kvm_s390_vsie {
> diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
> index 46dcf9ea59d3..e00eae7ec0b8 100644
> --- a/arch/s390/kvm/kvm-s390.c
> +++ b/arch/s390/kvm/kvm-s390.c
> @@ -2219,6 +2219,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
>  	if (!kvm->arch.sie_page2)
>  		goto out_err;
>  
> +	kvm->arch.sie_page2->kvm = kvm;
>  	kvm->arch.model.fac_list = kvm->arch.sie_page2->fac_list;
>  
>  	for (i = 0; i < kvm_s390_fac_size(); i++) {
> 

Reviewed-by: David Hildenbrand <david@redhat.com>
diff mbox series

Patch

diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 02227457945e..3e3225ea303b 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -802,7 +802,8 @@  struct sie_page2 {
 	__u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64];	/* 0x0000 */
 	struct kvm_s390_crypto_cb crycb;		/* 0x0800 */
 	struct kvm_s390_gisa gisa;			/* 0x0900 */
-	u8 reserved920[0x1000 - 0x920];			/* 0x0920 */
+	struct kvm *kvm;				/* 0x0920 */
+	u8 reserved928[0x1000 - 0x928];			/* 0x0928 */
 };
 
 struct kvm_s390_vsie {
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 46dcf9ea59d3..e00eae7ec0b8 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -2219,6 +2219,7 @@  int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 	if (!kvm->arch.sie_page2)
 		goto out_err;
 
+	kvm->arch.sie_page2->kvm = kvm;
 	kvm->arch.model.fac_list = kvm->arch.sie_page2->fac_list;
 
 	for (i = 0; i < kvm_s390_fac_size(); i++) {