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| author | Ravi Bangoria <ravi.bangoria@linux.ibm.com> | 2020-07-23 12:08:11 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-07-26 16:34:19 +0300 |
| commit | 03f3e54abd95061ea11bdb4eedbe3cab6553704f (patch) | |
| tree | d02940a478fe85fb61c45ac97dfd6c7064919cfd /arch/powerpc/include/asm/plpar_wrappers.h | |
| parent | 6f3fe297f95134e9b2386dae0067bf530e1ddca0 (diff) | |
| download | linux-03f3e54abd95061ea11bdb4eedbe3cab6553704f.tar.xz | |
powerpc/watchpoint: Guest support for 2nd DAWR hcall
2nd DAWR can be set/unset using H_SET_MODE hcall with resource value 5.
Enable powervm guest support with that. This has no effect on kvm guest
because kvm will return error if guest does hcall with resource value 5.
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200723090813.303838-9-ravi.bangoria@linux.ibm.com
Diffstat (limited to 'arch/powerpc/include/asm/plpar_wrappers.h')
| -rw-r--r-- | arch/powerpc/include/asm/plpar_wrappers.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/plpar_wrappers.h b/arch/powerpc/include/asm/plpar_wrappers.h index d12c3680d946..ece84a430701 100644 --- a/arch/powerpc/include/asm/plpar_wrappers.h +++ b/arch/powerpc/include/asm/plpar_wrappers.h @@ -315,6 +315,11 @@ static inline long plpar_set_watchpoint0(unsigned long dawr0, unsigned long dawr return plpar_set_mode(0, H_SET_MODE_RESOURCE_SET_DAWR0, dawr0, dawrx0); } +static inline long plpar_set_watchpoint1(unsigned long dawr1, unsigned long dawrx1) +{ + return plpar_set_mode(0, H_SET_MODE_RESOURCE_SET_DAWR1, dawr1, dawrx1); +} + static inline long plpar_signal_sys_reset(long cpu) { return plpar_hcall_norets(H_SIGNAL_SYS_RESET, cpu); |