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helo=mx0a-002c1b01.pphosted.com","X-Spam_score_int":"-31","X-Spam_score":"-3.2","X-Spam_bar":"---","X-Spam_report":"(-3.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.438,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001,\n 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":"qemu development ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"The existing aml_interrupt() uses the Extended Interrupt Descriptor to store\nthe interrupt information, however newer Windows will only parse the\nstandard IRQ Descriptor when enumerating ISA serial ports.\n\nSigned-off-by: Mark Cave-Ayland \n---\n include/hw/acpi/aml-build.h | 2 ++\n hw/acpi/aml-build-stub.c | 6 ++++++\n hw/acpi/aml-build.c | 25 +++++++++++++++++++++++++\n 3 files changed, 33 insertions(+)","diff":"diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h\nindex e70e0643b1..eaff025d26 100644\n--- a/include/hw/acpi/aml-build.h\n+++ b/include/hw/acpi/aml-build.h\n@@ -343,6 +343,8 @@ Aml *aml_io(AmlIODecode dec, uint16_t min_base, uint16_t max_base,\n Aml *aml_operation_region(const char *name, AmlRegionSpace rs,\n Aml *offset, uint32_t len);\n Aml *aml_irq_no_flags(uint8_t irq);\n+Aml *aml_irq(uint8_t irq, AmlLevelAndEdge level_and_edge,\n+ AmlActiveHighAndLow high_and_low, AmlShared shared);\n Aml *aml_named_field(const char *name, unsigned length);\n Aml *aml_reserved_field(unsigned length);\n Aml *aml_local(int num);\ndiff --git a/hw/acpi/aml-build-stub.c b/hw/acpi/aml-build-stub.c\nindex 89a8fec4af..3180c7c962 100644\n--- a/hw/acpi/aml-build-stub.c\n+++ b/hw/acpi/aml-build-stub.c\n@@ -67,6 +67,12 @@ Aml *aml_irq_no_flags(uint8_t irq)\n return NULL;\n }\n \n+Aml *aml_irq(uint8_t irq, AmlLevelAndEdge level_and_edge,\n+ AmlActiveHighAndLow high_and_low, AmlShared shared)\n+{\n+ return NULL;\n+}\n+\n Aml *aml_interrupt(AmlConsumerAndProducer con_and_pro,\n AmlLevelAndEdge level_and_edge,\n AmlActiveHighAndLow high_and_low, AmlShared shared,\ndiff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c\nindex 7edc8aed42..3aaf96c2a7 100644\n--- a/hw/acpi/aml-build.c\n+++ b/hw/acpi/aml-build.c\n@@ -1061,6 +1061,31 @@ Aml *aml_irq_no_flags(uint8_t irq)\n return var;\n }\n \n+/*\n+ * ACPI 1.0b: 6.4.2.1.1 ASL Macro for IRQ Descriptor\n+ *\n+ * More verbose description at:\n+ * ACPI 5.0: 19.5.63 IRQ (Interrupt Resource Descriptor Macro)\n+ * 6.4.2.1 IRQ Descriptor\n+ */\n+Aml *aml_irq(uint8_t irq, AmlLevelAndEdge level_and_edge,\n+ AmlActiveHighAndLow high_and_low, AmlShared shared)\n+{\n+ uint16_t irq_mask;\n+ Aml *var = aml_alloc();\n+ uint8_t irq_flags = level_and_edge | (high_and_low << 3) |\n+ (shared << 4);\n+\n+ assert(irq < 16);\n+ build_append_byte(var->buf, 0x23); /* IRQ descriptor 3 byte form */\n+\n+ irq_mask = 1U << irq;\n+ build_append_byte(var->buf, irq_mask & 0xFF); /* IRQ mask bits[7:0] */\n+ build_append_byte(var->buf, irq_mask >> 8); /* IRQ mask bits[15:8] */\n+ build_append_byte(var->buf, irq_flags); /* IRQ flags */\n+ return var;\n+}\n+\n /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLNot */\n Aml *aml_lnot(Aml *arg)\n {\n","prefixes":["v3","1/4"]}