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[59.124.168.89]) by smtp.gmail.com with ESMTPSA id c10-20020a63724a000000b0055386b1415dsm4989198pgn.51.2023.07.13.01.44.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Jul 2023 01:44:17 -0700 (PDT) From: Yong-Xuan Wang To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Cc: rkanwal@rivosinc.com, anup@brainfault.org, dbarboza@ventanamicro.com, ajones@ventanamicro.com, atishp@atishpatra.org, vincent.chen@sifive.com, greentime.hu@sifive.com, frank.chang@sifive.com, jim.shu@sifive.com, Yong-Xuan Wang , Palmer Dabbelt , Alistair Francis , Bin Meng , Weiwei Li , Liu Zhiwei Subject: [PATCH v5 1/5] target/riscv: support the AIA device emulation with KVM enabled Date: Thu, 13 Jul 2023 08:43:53 +0000 Message-Id: <20230713084405.24545-2-yongxuan.wang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230713084405.24545-1-yongxuan.wang@sifive.com> References: <20230713084405.24545-1-yongxuan.wang@sifive.com> Received-SPF: pass client-ip=2607:f8b0:4864:20::1036; envelope-from=yongxuan.wang@sifive.com; helo=mail-pj1-x1036.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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org In this patch, we create the APLIC and IMSIC FDT helper functions and remove M mode AIA devices when using KVM acceleration. Signed-off-by: Yong-Xuan Wang Reviewed-by: Jim Shu Reviewed-by: Daniel Henrique Barboza Reviewed-by: Andrew Jones --- hw/riscv/virt.c | 264 ++++++++++++++++++++++-------------------------- 1 file changed, 123 insertions(+), 141 deletions(-) diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index d90286dc46..26b3aff28e 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -516,79 +516,28 @@ static uint32_t imsic_num_bits(uint32_t count) return ret; } -static void create_fdt_imsic(RISCVVirtState *s, const MemMapEntry *memmap, - uint32_t *phandle, uint32_t *intc_phandles, - uint32_t *msi_m_phandle, uint32_t *msi_s_phandle) +static void create_fdt_one_imsic(RISCVVirtState *s, hwaddr base_addr, + uint32_t *intc_phandles, uint32_t msi_phandle, + bool m_mode, uint32_t imsic_guest_bits) { int cpu, socket; char *imsic_name; MachineState *ms = MACHINE(s); int socket_count = riscv_socket_count(ms); - uint32_t imsic_max_hart_per_socket, imsic_guest_bits; + uint32_t imsic_max_hart_per_socket; uint32_t *imsic_cells, *imsic_regs, imsic_addr, imsic_size; - *msi_m_phandle = (*phandle)++; - *msi_s_phandle = (*phandle)++; imsic_cells = g_new0(uint32_t, ms->smp.cpus * 2); imsic_regs = g_new0(uint32_t, socket_count * 4); - /* M-level IMSIC node */ for (cpu = 0; cpu < ms->smp.cpus; cpu++) { imsic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); - imsic_cells[cpu * 2 + 1] = cpu_to_be32(IRQ_M_EXT); - } - imsic_max_hart_per_socket = 0; - for (socket = 0; socket < socket_count; socket++) { - imsic_addr = memmap[VIRT_IMSIC_M].base + - socket * VIRT_IMSIC_GROUP_MAX_SIZE; - imsic_size = IMSIC_HART_SIZE(0) * s->soc[socket].num_harts; - imsic_regs[socket * 4 + 0] = 0; - imsic_regs[socket * 4 + 1] = cpu_to_be32(imsic_addr); - imsic_regs[socket * 4 + 2] = 0; - imsic_regs[socket * 4 + 3] = cpu_to_be32(imsic_size); - if (imsic_max_hart_per_socket < s->soc[socket].num_harts) { - imsic_max_hart_per_socket = s->soc[socket].num_harts; - } - } - imsic_name = g_strdup_printf("/soc/imsics@%lx", - (unsigned long)memmap[VIRT_IMSIC_M].base); - qemu_fdt_add_subnode(ms->fdt, imsic_name); - qemu_fdt_setprop_string(ms->fdt, imsic_name, "compatible", - "riscv,imsics"); - qemu_fdt_setprop_cell(ms->fdt, imsic_name, "#interrupt-cells", - FDT_IMSIC_INT_CELLS); - qemu_fdt_setprop(ms->fdt, imsic_name, "interrupt-controller", - NULL, 0); - qemu_fdt_setprop(ms->fdt, imsic_name, "msi-controller", - NULL, 0); - qemu_fdt_setprop(ms->fdt, imsic_name, "interrupts-extended", - imsic_cells, ms->smp.cpus * sizeof(uint32_t) * 2); - qemu_fdt_setprop(ms->fdt, imsic_name, "reg", imsic_regs, - socket_count * sizeof(uint32_t) * 4); - qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,num-ids", - VIRT_IRQCHIP_NUM_MSIS); - if (socket_count > 1) { - qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,hart-index-bits", - imsic_num_bits(imsic_max_hart_per_socket)); - qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,group-index-bits", - imsic_num_bits(socket_count)); - qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,group-index-shift", - IMSIC_MMIO_GROUP_MIN_SHIFT); + imsic_cells[cpu * 2 + 1] = cpu_to_be32(m_mode ? IRQ_M_EXT : IRQ_S_EXT); } - qemu_fdt_setprop_cell(ms->fdt, imsic_name, "phandle", *msi_m_phandle); - g_free(imsic_name); - - /* S-level IMSIC node */ - for (cpu = 0; cpu < ms->smp.cpus; cpu++) { - imsic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); - imsic_cells[cpu * 2 + 1] = cpu_to_be32(IRQ_S_EXT); - } - imsic_guest_bits = imsic_num_bits(s->aia_guests + 1); imsic_max_hart_per_socket = 0; for (socket = 0; socket < socket_count; socket++) { - imsic_addr = memmap[VIRT_IMSIC_S].base + - socket * VIRT_IMSIC_GROUP_MAX_SIZE; + imsic_addr = base_addr + socket * VIRT_IMSIC_GROUP_MAX_SIZE; imsic_size = IMSIC_HART_SIZE(imsic_guest_bits) * s->soc[socket].num_harts; imsic_regs[socket * 4 + 0] = 0; @@ -599,119 +548,149 @@ static void create_fdt_imsic(RISCVVirtState *s, const MemMapEntry *memmap, imsic_max_hart_per_socket = s->soc[socket].num_harts; } } - imsic_name = g_strdup_printf("/soc/imsics@%lx", - (unsigned long)memmap[VIRT_IMSIC_S].base); + + imsic_name = g_strdup_printf("/soc/imsics@%lx", (unsigned long)base_addr); qemu_fdt_add_subnode(ms->fdt, imsic_name); - qemu_fdt_setprop_string(ms->fdt, imsic_name, "compatible", - "riscv,imsics"); + qemu_fdt_setprop_string(ms->fdt, imsic_name, "compatible", "riscv,imsics"); qemu_fdt_setprop_cell(ms->fdt, imsic_name, "#interrupt-cells", FDT_IMSIC_INT_CELLS); - qemu_fdt_setprop(ms->fdt, imsic_name, "interrupt-controller", - NULL, 0); - qemu_fdt_setprop(ms->fdt, imsic_name, "msi-controller", - NULL, 0); + qemu_fdt_setprop(ms->fdt, imsic_name, "interrupt-controller", NULL, 0); + qemu_fdt_setprop(ms->fdt, imsic_name, "msi-controller", NULL, 0); qemu_fdt_setprop(ms->fdt, imsic_name, "interrupts-extended", imsic_cells, ms->smp.cpus * sizeof(uint32_t) * 2); qemu_fdt_setprop(ms->fdt, imsic_name, "reg", imsic_regs, socket_count * sizeof(uint32_t) * 4); qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,num-ids", VIRT_IRQCHIP_NUM_MSIS); + if (imsic_guest_bits) { qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,guest-index-bits", imsic_guest_bits); } + if (socket_count > 1) { qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,hart-index-bits", imsic_num_bits(imsic_max_hart_per_socket)); qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,group-index-bits", imsic_num_bits(socket_count)); - qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,group-index-shift", - IMSIC_MMIO_GROUP_MIN_SHIFT); + qemu_fdt_setprop_cell(ms->fdt, imsic_name, + "riscv,group-index-shift", IMSIC_MMIO_GROUP_MIN_SHIFT); } - qemu_fdt_setprop_cell(ms->fdt, imsic_name, "phandle", *msi_s_phandle); - g_free(imsic_name); + qemu_fdt_setprop_cell(ms->fdt, imsic_name, "phandle", msi_phandle); + g_free(imsic_name); g_free(imsic_regs); g_free(imsic_cells); } -static void create_fdt_socket_aplic(RISCVVirtState *s, - const MemMapEntry *memmap, int socket, - uint32_t msi_m_phandle, - uint32_t msi_s_phandle, - uint32_t *phandle, - uint32_t *intc_phandles, - uint32_t *aplic_phandles) +static void create_fdt_imsic(RISCVVirtState *s, const MemMapEntry *memmap, + uint32_t *phandle, uint32_t *intc_phandles, + uint32_t *msi_m_phandle, uint32_t *msi_s_phandle) +{ + *msi_m_phandle = (*phandle)++; + *msi_s_phandle = (*phandle)++; + + if (!kvm_enabled()) { + /* M-level IMSIC node */ + create_fdt_one_imsic(s, memmap[VIRT_IMSIC_M].base, intc_phandles, + *msi_m_phandle, true, 0); + } + + /* S-level IMSIC node */ + create_fdt_one_imsic(s, memmap[VIRT_IMSIC_S].base, intc_phandles, + *msi_s_phandle, false, + imsic_num_bits(s->aia_guests + 1)); + +} + +static void create_fdt_one_aplic(RISCVVirtState *s, int socket, + unsigned long aplic_addr, uint32_t aplic_size, + uint32_t msi_phandle, + uint32_t *intc_phandles, + uint32_t aplic_phandle, + uint32_t aplic_child_phandle, + bool m_mode) { int cpu; char *aplic_name; uint32_t *aplic_cells; - unsigned long aplic_addr; MachineState *ms = MACHINE(s); - uint32_t aplic_m_phandle, aplic_s_phandle; - aplic_m_phandle = (*phandle)++; - aplic_s_phandle = (*phandle)++; aplic_cells = g_new0(uint32_t, s->soc[socket].num_harts * 2); - /* M-level APLIC node */ for (cpu = 0; cpu < s->soc[socket].num_harts; cpu++) { aplic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); - aplic_cells[cpu * 2 + 1] = cpu_to_be32(IRQ_M_EXT); + aplic_cells[cpu * 2 + 1] = cpu_to_be32(m_mode ? IRQ_M_EXT : IRQ_S_EXT); } - aplic_addr = memmap[VIRT_APLIC_M].base + - (memmap[VIRT_APLIC_M].size * socket); + aplic_name = g_strdup_printf("/soc/aplic@%lx", aplic_addr); qemu_fdt_add_subnode(ms->fdt, aplic_name); qemu_fdt_setprop_string(ms->fdt, aplic_name, "compatible", "riscv,aplic"); qemu_fdt_setprop_cell(ms->fdt, aplic_name, "#interrupt-cells", FDT_APLIC_INT_CELLS); qemu_fdt_setprop(ms->fdt, aplic_name, "interrupt-controller", NULL, 0); + if (s->aia_type == VIRT_AIA_TYPE_APLIC) { qemu_fdt_setprop(ms->fdt, aplic_name, "interrupts-extended", aplic_cells, s->soc[socket].num_harts * sizeof(uint32_t) * 2); } else { - qemu_fdt_setprop_cell(ms->fdt, aplic_name, "msi-parent", - msi_m_phandle); + qemu_fdt_setprop_cell(ms->fdt, aplic_name, "msi-parent", msi_phandle); } + qemu_fdt_setprop_cells(ms->fdt, aplic_name, "reg", - 0x0, aplic_addr, 0x0, memmap[VIRT_APLIC_M].size); + 0x0, aplic_addr, 0x0, aplic_size); qemu_fdt_setprop_cell(ms->fdt, aplic_name, "riscv,num-sources", VIRT_IRQCHIP_NUM_SOURCES); - qemu_fdt_setprop_cell(ms->fdt, aplic_name, "riscv,children", - aplic_s_phandle); - qemu_fdt_setprop_cells(ms->fdt, aplic_name, "riscv,delegate", - aplic_s_phandle, 0x1, VIRT_IRQCHIP_NUM_SOURCES); + + if (aplic_child_phandle) { + qemu_fdt_setprop_cell(ms->fdt, aplic_name, "riscv,children", + aplic_child_phandle); + qemu_fdt_setprop_cells(ms->fdt, aplic_name, "riscv,delegate", + aplic_child_phandle, 0x1, VIRT_IRQCHIP_NUM_SOURCES); + } + riscv_socket_fdt_write_id(ms, aplic_name, socket); - qemu_fdt_setprop_cell(ms->fdt, aplic_name, "phandle", aplic_m_phandle); + qemu_fdt_setprop_cell(ms->fdt, aplic_name, "phandle", aplic_phandle); + g_free(aplic_name); + g_free(aplic_cells); +} - /* S-level APLIC node */ - for (cpu = 0; cpu < s->soc[socket].num_harts; cpu++) { - aplic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); - aplic_cells[cpu * 2 + 1] = cpu_to_be32(IRQ_S_EXT); +static void create_fdt_socket_aplic(RISCVVirtState *s, + const MemMapEntry *memmap, int socket, + uint32_t msi_m_phandle, + uint32_t msi_s_phandle, + uint32_t *phandle, + uint32_t *intc_phandles, + uint32_t *aplic_phandles) +{ + char *aplic_name; + unsigned long aplic_addr; + MachineState *ms = MACHINE(s); + uint32_t aplic_m_phandle, aplic_s_phandle; + + aplic_m_phandle = (*phandle)++; + aplic_s_phandle = (*phandle)++; + + if (!kvm_enabled()) { + /* M-level APLIC node */ + aplic_addr = memmap[VIRT_APLIC_M].base + + (memmap[VIRT_APLIC_M].size * socket); + create_fdt_one_aplic(s, socket, aplic_addr, memmap[VIRT_APLIC_M].size, + msi_m_phandle, intc_phandles, + aplic_m_phandle, aplic_s_phandle, + true); } + + /* S-level APLIC node */ aplic_addr = memmap[VIRT_APLIC_S].base + (memmap[VIRT_APLIC_S].size * socket); + create_fdt_one_aplic(s, socket, aplic_addr, memmap[VIRT_APLIC_S].size, + msi_s_phandle, intc_phandles, + aplic_s_phandle, 0, + false); + aplic_name = g_strdup_printf("/soc/aplic@%lx", aplic_addr); - qemu_fdt_add_subnode(ms->fdt, aplic_name); - qemu_fdt_setprop_string(ms->fdt, aplic_name, "compatible", "riscv,aplic"); - qemu_fdt_setprop_cell(ms->fdt, aplic_name, - "#interrupt-cells", FDT_APLIC_INT_CELLS); - qemu_fdt_setprop(ms->fdt, aplic_name, "interrupt-controller", NULL, 0); - if (s->aia_type == VIRT_AIA_TYPE_APLIC) { - qemu_fdt_setprop(ms->fdt, aplic_name, "interrupts-extended", - aplic_cells, s->soc[socket].num_harts * sizeof(uint32_t) * 2); - } else { - qemu_fdt_setprop_cell(ms->fdt, aplic_name, "msi-parent", - msi_s_phandle); - } - qemu_fdt_setprop_cells(ms->fdt, aplic_name, "reg", - 0x0, aplic_addr, 0x0, memmap[VIRT_APLIC_S].size); - qemu_fdt_setprop_cell(ms->fdt, aplic_name, "riscv,num-sources", - VIRT_IRQCHIP_NUM_SOURCES); - riscv_socket_fdt_write_id(ms, aplic_name, socket); - qemu_fdt_setprop_cell(ms->fdt, aplic_name, "phandle", aplic_s_phandle); if (!socket) { platform_bus_add_all_fdt_nodes(ms->fdt, aplic_name, @@ -722,7 +701,6 @@ static void create_fdt_socket_aplic(RISCVVirtState *s, g_free(aplic_name); - g_free(aplic_cells); aplic_phandles[socket] = aplic_s_phandle; } @@ -1163,16 +1141,20 @@ static DeviceState *virt_create_aia(RISCVVirtAIAType aia_type, int aia_guests, int i; hwaddr addr; uint32_t guest_bits; - DeviceState *aplic_m; - bool msimode = (aia_type == VIRT_AIA_TYPE_APLIC_IMSIC) ? true : false; + DeviceState *aplic_s = NULL; + DeviceState *aplic_m = NULL; + bool msimode = aia_type == VIRT_AIA_TYPE_APLIC_IMSIC; if (msimode) { - /* Per-socket M-level IMSICs */ - addr = memmap[VIRT_IMSIC_M].base + socket * VIRT_IMSIC_GROUP_MAX_SIZE; - for (i = 0; i < hart_count; i++) { - riscv_imsic_create(addr + i * IMSIC_HART_SIZE(0), - base_hartid + i, true, 1, - VIRT_IRQCHIP_NUM_MSIS); + if (!kvm_enabled()) { + /* Per-socket M-level IMSICs */ + addr = memmap[VIRT_IMSIC_M].base + + socket * VIRT_IMSIC_GROUP_MAX_SIZE; + for (i = 0; i < hart_count; i++) { + riscv_imsic_create(addr + i * IMSIC_HART_SIZE(0), + base_hartid + i, true, 1, + VIRT_IRQCHIP_NUM_MSIS); + } } /* Per-socket S-level IMSICs */ @@ -1185,29 +1167,29 @@ static DeviceState *virt_create_aia(RISCVVirtAIAType aia_type, int aia_guests, } } - /* Per-socket M-level APLIC */ - aplic_m = riscv_aplic_create( - memmap[VIRT_APLIC_M].base + socket * memmap[VIRT_APLIC_M].size, - memmap[VIRT_APLIC_M].size, + if (!kvm_enabled()) { + /* Per-socket M-level APLIC */ + aplic_m = riscv_aplic_create( + memmap[VIRT_APLIC_M].base + socket * memmap[VIRT_APLIC_M].size, + memmap[VIRT_APLIC_M].size, + (msimode) ? 0 : base_hartid, + (msimode) ? 0 : hart_count, + VIRT_IRQCHIP_NUM_SOURCES, + VIRT_IRQCHIP_NUM_PRIO_BITS, + msimode, true, NULL); + } + + /* Per-socket S-level APLIC */ + aplic_s = riscv_aplic_create( + memmap[VIRT_APLIC_S].base + socket * memmap[VIRT_APLIC_S].size, + memmap[VIRT_APLIC_S].size, (msimode) ? 0 : base_hartid, (msimode) ? 0 : hart_count, VIRT_IRQCHIP_NUM_SOURCES, VIRT_IRQCHIP_NUM_PRIO_BITS, - msimode, true, NULL); - - if (aplic_m) { - /* Per-socket S-level APLIC */ - riscv_aplic_create( - memmap[VIRT_APLIC_S].base + socket * memmap[VIRT_APLIC_S].size, - memmap[VIRT_APLIC_S].size, - (msimode) ? 0 : base_hartid, - (msimode) ? 0 : hart_count, - VIRT_IRQCHIP_NUM_SOURCES, - VIRT_IRQCHIP_NUM_PRIO_BITS, - msimode, false, aplic_m); - } + msimode, false, aplic_m); - return aplic_m; + return kvm_enabled() ? aplic_s : aplic_m; } static void create_platform_bus(RISCVVirtState *s, DeviceState *irqchip)