| Message ID | 1363847101-26503-3-git-send-email-Bharat.Bhushan@freescale.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 21.03.2013, at 07:24, Bharat Bhushan wrote: > From: Bharat Bhushan <bharat.bhushan@freescale.com> > > This patch defines the interface parameter for KVM_SET_GUEST_DEBUG > ioctl support. Follow up patches will use this for setting up > hardware breakpoints, watchpoints and software breakpoints. > > Also kvm_arch_vcpu_ioctl_set_guest_debug() is brought one level below. > This is because I am not sure what is required for book3s. So this ioctl > behaviour will not change for book3s. > > Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com> > --- > v2: > - No Change > > arch/powerpc/include/uapi/asm/kvm.h | 23 +++++++++++++++++++++++ > arch/powerpc/kvm/book3s.c | 6 ++++++ > arch/powerpc/kvm/booke.c | 6 ++++++ > arch/powerpc/kvm/powerpc.c | 6 ------ > 4 files changed, 35 insertions(+), 6 deletions(-) > > diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h > index c2ff99c..15f9a00 100644 > --- a/arch/powerpc/include/uapi/asm/kvm.h > +++ b/arch/powerpc/include/uapi/asm/kvm.h > @@ -272,8 +272,31 @@ struct kvm_debug_exit_arch { > > /* for KVM_SET_GUEST_DEBUG */ > struct kvm_guest_debug_arch { > + struct { > + /* H/W breakpoint/watchpoint address */ > + __u64 addr; > + /* > + * Type denotes h/w breakpoint, read watchpoint, write > + * watchpoint or watchpoint (both read and write). > + */ > +#define KVMPPC_DEBUG_NOTYPE 0x0 > +#define KVMPPC_DEBUG_BREAKPOINT (1UL << 1) > +#define KVMPPC_DEBUG_WATCH_WRITE (1UL << 2) > +#define KVMPPC_DEBUG_WATCH_READ (1UL << 3) Are you sure you want to introduce these here, just to remove them again in a later patch? Alex -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
> -----Original Message----- > From: Alexander Graf [mailto:agraf@suse.de] > Sent: Friday, March 29, 2013 7:26 AM > To: Bhushan Bharat-R65777 > Cc: kvm-ppc@vger.kernel.org; kvm@vger.kernel.org; Wood Scott-B07421; Bhushan > Bharat-R65777 > Subject: Re: [PATCH 2/4 v2] KVM: PPC: debug stub interface parameter defined > > > On 21.03.2013, at 07:24, Bharat Bhushan wrote: > > > From: Bharat Bhushan <bharat.bhushan@freescale.com> > > > > This patch defines the interface parameter for KVM_SET_GUEST_DEBUG > > ioctl support. Follow up patches will use this for setting up hardware > > breakpoints, watchpoints and software breakpoints. > > > > Also kvm_arch_vcpu_ioctl_set_guest_debug() is brought one level below. > > This is because I am not sure what is required for book3s. So this > > ioctl behaviour will not change for book3s. > > > > Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com> > > --- > > v2: > > - No Change > > > > arch/powerpc/include/uapi/asm/kvm.h | 23 +++++++++++++++++++++++ > > arch/powerpc/kvm/book3s.c | 6 ++++++ > > arch/powerpc/kvm/booke.c | 6 ++++++ > > arch/powerpc/kvm/powerpc.c | 6 ------ > > 4 files changed, 35 insertions(+), 6 deletions(-) > > > > diff --git a/arch/powerpc/include/uapi/asm/kvm.h > > b/arch/powerpc/include/uapi/asm/kvm.h > > index c2ff99c..15f9a00 100644 > > --- a/arch/powerpc/include/uapi/asm/kvm.h > > +++ b/arch/powerpc/include/uapi/asm/kvm.h > > @@ -272,8 +272,31 @@ struct kvm_debug_exit_arch { > > > > /* for KVM_SET_GUEST_DEBUG */ > > struct kvm_guest_debug_arch { > > + struct { > > + /* H/W breakpoint/watchpoint address */ > > + __u64 addr; > > + /* > > + * Type denotes h/w breakpoint, read watchpoint, write > > + * watchpoint or watchpoint (both read and write). > > + */ > > +#define KVMPPC_DEBUG_NOTYPE 0x0 > > +#define KVMPPC_DEBUG_BREAKPOINT (1UL << 1) > > +#define KVMPPC_DEBUG_WATCH_WRITE (1UL << 2) > > +#define KVMPPC_DEBUG_WATCH_READ (1UL << 3) > > Are you sure you want to introduce these here, just to remove them again in a > later patch? Up to this patch the scope was limited to this structure. So for clarity I defined here and later the scope expands so moved out of this structure. I do not think this really matters, let me know how you want to see ? -Bharat > > > Alex > -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 29.03.2013, at 04:08, Bhushan Bharat-R65777 wrote: > > >> -----Original Message----- >> From: Alexander Graf [mailto:agraf@suse.de] >> Sent: Friday, March 29, 2013 7:26 AM >> To: Bhushan Bharat-R65777 >> Cc: kvm-ppc@vger.kernel.org; kvm@vger.kernel.org; Wood Scott-B07421; Bhushan >> Bharat-R65777 >> Subject: Re: [PATCH 2/4 v2] KVM: PPC: debug stub interface parameter defined >> >> >> On 21.03.2013, at 07:24, Bharat Bhushan wrote: >> >>> From: Bharat Bhushan <bharat.bhushan@freescale.com> >>> >>> This patch defines the interface parameter for KVM_SET_GUEST_DEBUG >>> ioctl support. Follow up patches will use this for setting up hardware >>> breakpoints, watchpoints and software breakpoints. >>> >>> Also kvm_arch_vcpu_ioctl_set_guest_debug() is brought one level below. >>> This is because I am not sure what is required for book3s. So this >>> ioctl behaviour will not change for book3s. >>> >>> Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com> >>> --- >>> v2: >>> - No Change >>> >>> arch/powerpc/include/uapi/asm/kvm.h | 23 +++++++++++++++++++++++ >>> arch/powerpc/kvm/book3s.c | 6 ++++++ >>> arch/powerpc/kvm/booke.c | 6 ++++++ >>> arch/powerpc/kvm/powerpc.c | 6 ------ >>> 4 files changed, 35 insertions(+), 6 deletions(-) >>> >>> diff --git a/arch/powerpc/include/uapi/asm/kvm.h >>> b/arch/powerpc/include/uapi/asm/kvm.h >>> index c2ff99c..15f9a00 100644 >>> --- a/arch/powerpc/include/uapi/asm/kvm.h >>> +++ b/arch/powerpc/include/uapi/asm/kvm.h >>> @@ -272,8 +272,31 @@ struct kvm_debug_exit_arch { >>> >>> /* for KVM_SET_GUEST_DEBUG */ >>> struct kvm_guest_debug_arch { >>> + struct { >>> + /* H/W breakpoint/watchpoint address */ >>> + __u64 addr; >>> + /* >>> + * Type denotes h/w breakpoint, read watchpoint, write >>> + * watchpoint or watchpoint (both read and write). >>> + */ >>> +#define KVMPPC_DEBUG_NOTYPE 0x0 >>> +#define KVMPPC_DEBUG_BREAKPOINT (1UL << 1) >>> +#define KVMPPC_DEBUG_WATCH_WRITE (1UL << 2) >>> +#define KVMPPC_DEBUG_WATCH_READ (1UL << 3) >> >> Are you sure you want to introduce these here, just to remove them again in a >> later patch? > > Up to this patch the scope was limited to this structure. So for clarity I defined here and later the scope expands so moved out of this structure. I do not think this really matters, let me know how you want to see ? Well, at least I want to see the names be identical between the patches ;). Alex -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h index c2ff99c..15f9a00 100644 --- a/arch/powerpc/include/uapi/asm/kvm.h +++ b/arch/powerpc/include/uapi/asm/kvm.h @@ -272,8 +272,31 @@ struct kvm_debug_exit_arch { /* for KVM_SET_GUEST_DEBUG */ struct kvm_guest_debug_arch { + struct { + /* H/W breakpoint/watchpoint address */ + __u64 addr; + /* + * Type denotes h/w breakpoint, read watchpoint, write + * watchpoint or watchpoint (both read and write). + */ +#define KVMPPC_DEBUG_NOTYPE 0x0 +#define KVMPPC_DEBUG_BREAKPOINT (1UL << 1) +#define KVMPPC_DEBUG_WATCH_WRITE (1UL << 2) +#define KVMPPC_DEBUG_WATCH_READ (1UL << 3) + __u32 type; + __u32 reserved; + } bp[16]; }; +/* Debug related defines */ +/* + * kvm_guest_debug->control is a 32 bit field. The lower 16 bits are generic + * and upper 16 bits are architecture specific. Architecture specific defines + * that ioctl is for setting hardware breakpoint or software breakpoint. + */ +#define KVM_GUESTDBG_USE_SW_BP 0x00010000 +#define KVM_GUESTDBG_USE_HW_BP 0x00020000 + /* definition of registers in kvm_run */ struct kvm_sync_regs { }; diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index 975a401..cb85d73 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -613,6 +613,12 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, return 0; } +int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, + struct kvm_guest_debug *dbg) +{ + return -EINVAL; +} + void kvmppc_decrementer_func(unsigned long data) { struct kvm_vcpu *vcpu = (struct kvm_vcpu *)data; diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index a41cd6d..1de93a8 100644 --- a/arch/powerpc/kvm/booke.c +++ b/arch/powerpc/kvm/booke.c @@ -1527,6 +1527,12 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg) return r; } +int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, + struct kvm_guest_debug *dbg) +{ + return -EINVAL; +} + int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) { return -ENOTSUPP; diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 934413c..4c94ca9 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -532,12 +532,6 @@ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) #endif } -int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, - struct kvm_guest_debug *dbg) -{ - return -EINVAL; -} - static void kvmppc_complete_dcr_load(struct kvm_vcpu *vcpu, struct kvm_run *run) {