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Wed, 16 Aug 2023 03:20:23 -0700 (PDT) From: Oleksii Kurochko To: xen-devel@lists.xenproject.org Cc: Oleksii Kurochko , Bob Eshleman , Alistair Francis , Connor Davis Subject: [PATCH v1 11/57] xen/riscv: introduce asm/guest_atomics.h Date: Wed, 16 Aug 2023 13:19:21 +0300 Message-ID: <02e2850d01d0184b9a1f0c643de4879773c5ad49.1692181079.git.oleksii.kurochko@gmail.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: References: MIME-Version: 1.0 Signed-off-by: Oleksii Kurochko --- xen/arch/riscv/include/asm/guest_atomics.h | 49 ++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 xen/arch/riscv/include/asm/guest_atomics.h diff --git a/xen/arch/riscv/include/asm/guest_atomics.h b/xen/arch/riscv/include/asm/guest_atomics.h new file mode 100644 index 0000000000..71b0b11a25 --- /dev/null +++ b/xen/arch/riscv/include/asm/guest_atomics.h @@ -0,0 +1,49 @@ +#ifndef __ASM_RISCV_GUEST_ATOMICS_H +#define __ASM_RISCV_GUEST_ATOMICS_H + +/* + * TODO: implement guest atomics + */ + +#define guest_testop(name) \ +static inline int guest_##name(struct domain *d, int nr, volatile void *p) \ +{ \ + (void) d; \ + (void) nr; \ + (void) p; \ + \ + return 0; \ +} + +#define guest_bitop(name) \ +static inline void guest_##name(struct domain *d, int nr, volatile void *p) \ +{ \ + (void) d; \ + (void) nr; \ + (void) p; \ +} + +guest_bitop(set_bit) +guest_bitop(clear_bit) +guest_bitop(change_bit) + +#undef guest_bitop + +guest_testop(test_and_set_bit) +guest_testop(test_and_clear_bit) +guest_testop(test_and_change_bit) + +#undef guest_testop + + +#define guest_test_bit(d, nr, p) ((void)(d), test_bit(nr, p)) + +#endif /* __ASM_RISCV_GUEST_ATOMICS_H */ +/* + * Local variables: + * mode: C + * c-file-style: "BSD" + * c-basic-offset: 4 + * indent-tabs-mode: nil + * End: + */