From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nicholas Piggin Date: Thu, 25 Feb 2021 13:46:23 +0000 Subject: [PATCH v2 08/37] KVM: PPC: Book3S 64: add hcall interrupt handler Message-Id: <20210225134652.2127648-9-npiggin@gmail.com> List-Id: References: <20210225134652.2127648-1-npiggin@gmail.com> In-Reply-To: <20210225134652.2127648-1-npiggin@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: kvm-ppc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org, Nicholas Piggin , Fabiano Rosas Add a separate hcall entry point. This can be used to deal with the different calling convention. Reviewed-by: Fabiano Rosas Signed-off-by: Nicholas Piggin --- arch/powerpc/kernel/exceptions-64s.S | 4 ++-- arch/powerpc/kvm/book3s_64_entry.S | 6 +++++- 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index d956dd9ed61f..9ae463e8522b 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -1992,13 +1992,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR) * Requires __LOAD_FAR_HANDLER beause kvmppc_interrupt lives * outside the head section. */ - __LOAD_FAR_HANDLER(r10, kvmppc_interrupt) + __LOAD_FAR_HANDLER(r10, kvmppc_hcall) mtctr r10 ld r10,PACA_EXGEN+EX_R10(r13) bctr #else ld r10,PACA_EXGEN+EX_R10(r13) - b kvmppc_interrupt + b kvmppc_hcall #endif #endif diff --git a/arch/powerpc/kvm/book3s_64_entry.S b/arch/powerpc/kvm/book3s_64_entry.S index c1276f616af4..9572f759255c 100644 --- a/arch/powerpc/kvm/book3s_64_entry.S +++ b/arch/powerpc/kvm/book3s_64_entry.S @@ -7,9 +7,13 @@ #include /* - * This is branched to from interrupt handlers in exception-64s.S which set + * These are branched to from interrupt handlers in exception-64s.S which set * IKVM_REAL or IKVM_VIRT, if HSTATE_IN_GUEST was found to be non-zero. */ +.global kvmppc_hcall +.balign IFETCH_ALIGN_BYTES +kvmppc_hcall: + .global kvmppc_interrupt .balign IFETCH_ALIGN_BYTES kvmppc_interrupt: -- 2.23.0