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| author | Alex Bennée <alex.bennee@linaro.org> | 2015-07-07 17:30:02 +0100 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2015-07-21 12:50:43 +0100 |
| commit | 834bf88726f0f11ddc7ff9679fc9458654c01a12 (patch) | |
| tree | 9fb71c96dfab5c64a4a2c5972783bd621f266874 /Documentation | |
| parent | 5540546bc93b49f98a0466fe3f96615286c76574 (diff) | |
| download | linux-0-day-834bf88726f0f11ddc7ff9679fc9458654c01a12.tar.gz linux-0-day-834bf88726f0f11ddc7ff9679fc9458654c01a12.tar.xz | |
KVM: arm64: enable KVM_CAP_SET_GUEST_DEBUG
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 <alex.bennee@linaro.org>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/virtual/kvm/api.txt | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index 0f498da354f26..35affb5d94561 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -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. |