From patchwork Thu May 16 15:47:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Edgar E. 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Iglesias" To: qemu-devel@nongnu.org Cc: edgar.iglesias@gmail.com, sstabellini@kernel.org, jgross@suse.com, "Edgar E. Iglesias" , David Hildenbrand , Anthony PERARD , Paul Durrant , xen-devel@lists.xenproject.org Subject: [PATCH v6 3/8] xen: Add xen_mr_is_memory() Date: Thu, 16 May 2024 17:47:59 +0200 Message-Id: <20240516154804.1114245-4-edgar.iglesias@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240516154804.1114245-1-edgar.iglesias@gmail.com> References: <20240516154804.1114245-1-edgar.iglesias@gmail.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::232; envelope-from=edgar.iglesias@gmail.com; helo=mail-lj1-x232.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: "Edgar E. Iglesias" Add xen_mr_is_memory() to abstract away tests for the xen_memory MR. No functional changes. Signed-off-by: Edgar E. Iglesias Reviewed-by: Stefano Stabellini Acked-by: David Hildenbrand --- hw/xen/xen-hvm-common.c | 10 ++++++++-- include/sysemu/xen.h | 8 ++++++++ 2 files changed, 16 insertions(+), 2 deletions(-) diff --git a/hw/xen/xen-hvm-common.c b/hw/xen/xen-hvm-common.c index 2d1b032121..a0a0252da0 100644 --- a/hw/xen/xen-hvm-common.c +++ b/hw/xen/xen-hvm-common.c @@ -12,6 +12,12 @@ MemoryRegion xen_memory; +/* Check for xen memory. */ +bool xen_mr_is_memory(MemoryRegion *mr) +{ + return mr == &xen_memory; +} + void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, MemoryRegion *mr, Error **errp) { @@ -28,7 +34,7 @@ void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, MemoryRegion *mr, return; } - if (mr == &xen_memory) { + if (xen_mr_is_memory(mr)) { return; } @@ -55,7 +61,7 @@ static void xen_set_memory(struct MemoryListener *listener, { XenIOState *state = container_of(listener, XenIOState, memory_listener); - if (section->mr == &xen_memory) { + if (xen_mr_is_memory(section->mr)) { return; } else { if (add) { diff --git a/include/sysemu/xen.h b/include/sysemu/xen.h index 754ec2e6cb..dc72f83bcb 100644 --- a/include/sysemu/xen.h +++ b/include/sysemu/xen.h @@ -34,6 +34,8 @@ void xen_hvm_modified_memory(ram_addr_t start, ram_addr_t length); void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, struct MemoryRegion *mr, Error **errp); +bool xen_mr_is_memory(MemoryRegion *mr); + #else /* !CONFIG_XEN_IS_POSSIBLE */ #define xen_enabled() 0 @@ -47,6 +49,12 @@ static inline void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, g_assert_not_reached(); } +static inline bool xen_mr_is_memory(MemoryRegion *mr) +{ + g_assert_not_reached(); + return false; +} + #endif /* CONFIG_XEN_IS_POSSIBLE */ #endif