|
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH for-4.5 v9 06/19] xen: Relocate mem_event_op domctl and access_op memop into common.
>>> On 24.09.14 at 11:09, <tklengyel@xxxxxxxxxxxxx> wrote:
> Signed-off-by: Tamas K Lengyel <tklengyel@xxxxxxxxxxxxx>
for the non-ARM, non-x86/mm parts
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
But you failed to Cc relevant people for those other parts (and you
Cc-ed too few for the common code changes).
Jan
> ---
> v9: Rename abstracted function to p2m_setup_introspection.
> v8: Move the new enable_msr_exit_interception test into the p2m layer.
> v6: Grouping style fix of #includes in common/memory.c.
> v5: Move memop compat into common as well.
> Position domctl in switch relative to the domctl #.
> v4: Don't remove memop handling from x86_64/compat and style fixes.
> ---
> xen/arch/x86/domctl.c | 8 --------
> xen/arch/x86/mm/p2m.c | 9 +++++++++
> xen/arch/x86/x86_64/compat/mm.c | 4 ----
> xen/arch/x86/x86_64/mm.c | 4 ----
> xen/common/compat/memory.c | 5 +++++
> xen/common/domctl.c | 7 +++++++
> xen/common/mem_event.c | 10 ++++------
> xen/common/memory.c | 9 +++++++--
> xen/include/asm-arm/p2m.h | 6 ++++++
> xen/include/asm-x86/p2m.h | 3 +++
> 10 files changed, 41 insertions(+), 24 deletions(-)
>
> diff --git a/xen/arch/x86/domctl.c b/xen/arch/x86/domctl.c
> index 8731e7f..ec77555 100644
> --- a/xen/arch/x86/domctl.c
> +++ b/xen/arch/x86/domctl.c
> @@ -1131,14 +1131,6 @@ long arch_do_domctl(
> }
> break;
>
> - case XEN_DOMCTL_mem_event_op:
> - {
> - ret = mem_event_domctl(d, &domctl->u.mem_event_op,
> - guest_handle_cast(u_domctl, void));
> - copyback = 1;
> - }
> - break;
> -
> case XEN_DOMCTL_mem_sharing_op:
> {
> ret = mem_sharing_domctl(d, &domctl->u.mem_sharing_op);
> diff --git a/xen/arch/x86/mm/p2m.c b/xen/arch/x86/mm/p2m.c
> index 08adaac..728e4eb 100644
> --- a/xen/arch/x86/mm/p2m.c
> +++ b/xen/arch/x86/mm/p2m.c
> @@ -1436,6 +1436,15 @@ void p2m_mem_event_emulate_check(struct vcpu *v, const
> mem_event_response_t *rsp
> }
> }
>
> +void p2m_setup_introspection(struct domain *d)
> +{
> + if ( hvm_funcs.enable_msr_exit_interception )
> + {
> + d->arch.hvm_domain.introspection_enabled = 1;
> + hvm_funcs.enable_msr_exit_interception(d);
> + }
> +}
> +
> bool_t p2m_mem_access_check(paddr_t gpa, unsigned long gla,
> struct npfec npfec,
> mem_event_request_t **req_ptr)
> diff --git a/xen/arch/x86/x86_64/compat/mm.c b/xen/arch/x86/x86_64/compat/mm.c
> index c079702..54f25b7 100644
> --- a/xen/arch/x86/x86_64/compat/mm.c
> +++ b/xen/arch/x86/x86_64/compat/mm.c
> @@ -198,10 +198,6 @@ int compat_arch_memory_op(unsigned long cmd,
> XEN_GUEST_HANDLE_PARAM(void) arg)
> break;
> }
>
> - case XENMEM_access_op:
> - rc = mem_access_memop(cmd, guest_handle_cast(arg,
> xen_mem_access_op_t));
> - break;
> -
> case XENMEM_sharing_op:
> {
> xen_mem_sharing_op_t mso;
> diff --git a/xen/arch/x86/x86_64/mm.c b/xen/arch/x86/x86_64/mm.c
> index cce1406..8e5a1a1 100644
> --- a/xen/arch/x86/x86_64/mm.c
> +++ b/xen/arch/x86/x86_64/mm.c
> @@ -995,10 +995,6 @@ long subarch_memory_op(unsigned long cmd,
> XEN_GUEST_HANDLE_PARAM(void) arg)
> break;
> }
>
> - case XENMEM_access_op:
> - rc = mem_access_memop(cmd, guest_handle_cast(arg,
> xen_mem_access_op_t));
> - break;
> -
> case XENMEM_sharing_op:
> {
> xen_mem_sharing_op_t mso;
> diff --git a/xen/common/compat/memory.c b/xen/common/compat/memory.c
> index 25dc016..43d02bc 100644
> --- a/xen/common/compat/memory.c
> +++ b/xen/common/compat/memory.c
> @@ -4,6 +4,7 @@
> #include <xen/guest_access.h>
> #include <xen/sched.h>
> #include <xen/event.h>
> +#include <xen/mem_access.h>
> #include <asm/current.h>
> #include <compat/memory.h>
>
> @@ -381,6 +382,10 @@ int compat_memory_op(unsigned int cmd,
> XEN_GUEST_HANDLE_PARAM(void) compat)
> break;
> }
>
> + case XENMEM_access_op:
> + rc = mem_access_memop(cmd, guest_handle_cast(compat,
> xen_mem_access_op_t));
> + break;
> +
> case XENMEM_add_to_physmap_batch:
> start_extent = end_extent;
> break;
> diff --git a/xen/common/domctl.c b/xen/common/domctl.c
> index 329e535..fd8dd44 100644
> --- a/xen/common/domctl.c
> +++ b/xen/common/domctl.c
> @@ -24,6 +24,7 @@
> #include <xen/bitmap.h>
> #include <xen/paging.h>
> #include <xen/hypercall.h>
> +#include <xen/mem_event.h>
> #include <asm/current.h>
> #include <asm/irq.h>
> #include <asm/page.h>
> @@ -1111,6 +1112,12 @@ long do_domctl(XEN_GUEST_HANDLE_PARAM(xen_domctl_t)
> u_domctl)
> }
> break;
>
> + case XEN_DOMCTL_mem_event_op:
> + ret = mem_event_domctl(d, &op->u.mem_event_op,
> + guest_handle_cast(u_domctl, void));
> + copyback = 1;
> + break;
> +
> case XEN_DOMCTL_disable_migrate:
> {
> d->disable_migrate = op->u.disable_migrate.disable;
> diff --git a/xen/common/mem_event.c b/xen/common/mem_event.c
> index 9f1a1b0..4338826 100644
> --- a/xen/common/mem_event.c
> +++ b/xen/common/mem_event.c
> @@ -623,12 +623,10 @@ int mem_event_domctl(struct domain *d,
> xen_domctl_mem_event_op_t *mec,
> HVM_PARAM_ACCESS_RING_PFN,
> mem_access_notification);
>
> - if ( mec->op != XEN_DOMCTL_MEM_EVENT_OP_ACCESS_ENABLE &&
> - rc == 0 && hvm_funcs.enable_msr_exit_interception )
> - {
> - d->arch.hvm_domain.introspection_enabled = 1;
> - hvm_funcs.enable_msr_exit_interception(d);
> - }
> + if ( mec->op ==
> XEN_DOMCTL_MEM_EVENT_OP_ACCESS_ENABLE_INTROSPECTION
> + && !rc )
> + p2m_setup_introspection(d);
> +
> }
> break;
>
> diff --git a/xen/common/memory.c b/xen/common/memory.c
> index bad50cb..cc36e39 100644
> --- a/xen/common/memory.c
> +++ b/xen/common/memory.c
> @@ -21,13 +21,14 @@
> #include <xen/errno.h>
> #include <xen/tmem.h>
> #include <xen/tmem_xen.h>
> +#include <xen/numa.h>
> +#include <xen/mem_access.h>
> +#include <xen/trace.h>
> #include <asm/current.h>
> #include <asm/hardirq.h>
> #include <asm/p2m.h>
> -#include <xen/numa.h>
> #include <public/memory.h>
> #include <xsm/xsm.h>
> -#include <xen/trace.h>
>
> struct memop_args {
> /* INPUT */
> @@ -939,6 +940,10 @@ long do_memory_op(unsigned long cmd,
> XEN_GUEST_HANDLE_PARAM(void) arg)
> break;
> }
>
> + case XENMEM_access_op:
> + rc = mem_access_memop(cmd, guest_handle_cast(arg,
> xen_mem_access_op_t));
> + break;
> +
> case XENMEM_claim_pages:
> if ( copy_from_guest(&reservation, arg, 1) )
> return -EFAULT;
> diff --git a/xen/include/asm-arm/p2m.h b/xen/include/asm-arm/p2m.h
> index 4d5570a..10bf111 100644
> --- a/xen/include/asm-arm/p2m.h
> +++ b/xen/include/asm-arm/p2m.h
> @@ -77,6 +77,12 @@ void p2m_mem_event_emulate_check(struct vcpu *v,
> /* Not supported on ARM. */
> };
>
> +static inline
> +void p2m_setup_introspection(struct domain *d)
> +{
> + /* No special setup on ARM. */
> +}
> +
> #define p2m_is_foreign(_t) ((_t) == p2m_map_foreign)
> #define p2m_is_ram(_t) ((_t) == p2m_ram_rw || (_t) == p2m_ram_ro)
>
> diff --git a/xen/include/asm-x86/p2m.h b/xen/include/asm-x86/p2m.h
> index 1de493e..a0e1704 100644
> --- a/xen/include/asm-x86/p2m.h
> +++ b/xen/include/asm-x86/p2m.h
> @@ -589,6 +589,9 @@ int p2m_get_mem_access(struct domain *d, unsigned long
> pfn,
> void p2m_mem_event_emulate_check(struct vcpu *v,
> const mem_event_response_t *rsp);
>
> +/* Enable arch specific introspection options (such as MSR interception).
> */
> +void p2m_setup_introspection(struct domain *d);
> +
> /*
> * Internal functions, only called by other p2m code
> */
> --
> 2.1.0
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel
|
 |
Lists.xenproject.org is hosted with RackSpace, monitoring our |