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KVM: arm64: enable KVM_CAP_SET_GUEST_DEBUG

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Finally advertise the KVM capability for SET_GUEST_DEBUG. Once arm
support is added this check can be moved to the common
kvm_vm_ioctl_check_extension() code.

Signed-off-by: Alex Bennée <[email protected]>
Acked-by: Christoffer Dall <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
This commit is contained in:
Alex Bennée 2015-07-07 17:30:02 +01:00 • committed by Marc Zyngier
commit 834bf88726
8 changed files with 89 additions and 19 deletions
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7
Documentation/virtual/kvm/api.txt
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@ -2694,7 +2694,7 @@ The top 16 bits of the control field are architecture specific control
flags which can include the following:
- KVM_GUESTDBG_USE_SW_BP: using software breakpoints [x86, arm64]
- KVM_GUESTDBG_USE_HW_BP: using hardware breakpoints [x86, s390]
- KVM_GUESTDBG_USE_HW_BP: using hardware breakpoints [x86, s390, arm64]
- KVM_GUESTDBG_INJECT_DB: inject DB type exception [x86]
- KVM_GUESTDBG_INJECT_BP: inject BP type exception [x86]
- KVM_GUESTDBG_EXIT_PENDING: trigger an immediate guest exit [s390]
@ -2709,6 +2709,11 @@ updated to the correct (supplied) values.
The second part of the structure is architecture specific and
typically contains a set of debug registers.
For arm64 the number of debug registers is implementation defined and
can be determined by querying the KVM_CAP_GUEST_DEBUG_HW_BPS and
KVM_CAP_GUEST_DEBUG_HW_WPS capabilities which return a positive number
indicating the number of supported registers.
When debug events exit the main run loop with the reason
KVM_EXIT_DEBUG with the kvm_debug_exit_arch part of the kvm_run
structure containing architecture specific debug information.