Merge remote-tracking branch 'remotes/alistair/tags/pull-riscv-to-apply-20220216' into staging

Fourth RISC-V PR for QEMU 7.0

 * Remove old Ibex PLIC header file
 * Allow writing 8 bytes with generic loader
 * Fixes for RV128
 * Refactor RISC-V CPU configs
 * Initial support for XVentanaCondOps custom extension
 * Fix for vill field in vtype
 * Fix trap cause for RV32 HS-mode CSR access from RV64 HS-mode
 * Support for svnapot, svinval and svpbmt extensions

# gpg: Signature made Wed 16 Feb 2022 06:24:52 GMT
# gpg:                using RSA key F6C4AC46D4934868D3B8CE8F21E10D29DF977054
# gpg: Good signature from "Alistair Francis <[email protected]>" [full]
# Primary key fingerprint: F6C4 AC46 D493 4868 D3B8  CE8F 21E1 0D29 DF97 7054

* remotes/alistair/tags/pull-riscv-to-apply-20220216: (35 commits)
  docs/system: riscv: Update description of CPU
  target/riscv: add support for svpbmt extension
  target/riscv: add support for svinval extension
  target/riscv: add support for svnapot extension
  target/riscv: add PTE_A/PTE_D/PTE_U bits check for inner PTE
  target/riscv: Ignore reserved bits in PTE for RV64
  hw/intc: Add RISC-V AIA APLIC device emulation
  target/riscv: Allow users to force enable AIA CSRs in HART
  hw/riscv: virt: Use AIA INTC compatible string when available
  target/riscv: Implement AIA IMSIC interface CSRs
  target/riscv: Implement AIA xiselect and xireg CSRs
  target/riscv: Implement AIA mtopi, stopi, and vstopi CSRs
  target/riscv: Implement AIA interrupt filtering CSRs
  target/riscv: Implement AIA hvictl and hviprioX CSRs
  target/riscv: Implement AIA CSRs for 64 local interrupts on RV32
  target/riscv: Implement AIA local interrupt priorities
  target/riscv: Allow AIA device emulation to set ireg rmw callback
  target/riscv: Add defines for AIA CSRs
  target/riscv: Add AIA cpu feature
  target/riscv: Allow setting CPU feature from machine/device emulation
  ...

Signed-off-by: Peter Maydell <[email protected]>

Author: pm215

MAINTAINERS

@@ -286,6 +286,13 @@ F: include/hw/riscv/
 F: linux-user/host/riscv32/
 F: linux-user/host/riscv64/
 
+RISC-V XVentanaCondOps extension
+M: Philipp Tomsich <[email protected]>
+L: [email protected]
+S: Supported
+F: target/riscv/XVentanaCondOps.decode
+F: target/riscv/insn_trans/trans_xventanacondops.c.inc
+
 RENESAS RX CPUs
 R: Yoshinori Sato <[email protected]>
 S: Orphan

docs/system/riscv/virt.rst

@@ -23,9 +23,9 @@ The ``virt`` machine supports the following devices:
 * 1 generic PCIe host bridge
 * The fw_cfg device that allows a guest to obtain data from QEMU
 
-Note that the default CPU is a generic RV32GC/RV64GC. Optional extensions
-can be enabled via command line parameters, e.g.: ``-cpu rv64,x-h=true``
-enables the hypervisor extension for RV64.
+The hypervisor extension has been enabled for the default CPU, so virtual
+machines with hypervisor extension can simply be used without explicitly
+declaring.
 
 Hardware configuration information
 ----------------------------------

hw/core/generic-loader.c

@@ -56,7 +56,7 @@ static void generic_loader_reset(void *opaque)
     }
 
     if (s->data_len) {
-        assert(s->data_len < sizeof(s->data));
+        assert(s->data_len <= sizeof(s->data));
         dma_memory_write(s->cpu->as, s->addr, &s->data, s->data_len,
                          MEMTXATTRS_UNSPECIFIED);
     }

hw/intc/Kconfig

@@ -70,6 +70,9 @@ config LOONGSON_LIOINTC
 config RISCV_ACLINT
     bool
 
+config RISCV_APLIC
+    bool
+
 config SIFIVE_PLIC
     bool
 

hw/intc/meson.build

@@ -50,6 +50,7 @@ specific_ss.add(when: 'CONFIG_S390_FLIC', if_true: files('s390_flic.c'))
 specific_ss.add(when: 'CONFIG_S390_FLIC_KVM', if_true: files('s390_flic_kvm.c'))
 specific_ss.add(when: 'CONFIG_SH_INTC', if_true: files('sh_intc.c'))
 specific_ss.add(when: 'CONFIG_RISCV_ACLINT', if_true: files('riscv_aclint.c'))
+specific_ss.add(when: 'CONFIG_RISCV_APLIC', if_true: files('riscv_aplic.c'))
 specific_ss.add(when: 'CONFIG_SIFIVE_PLIC', if_true: files('sifive_plic.c'))
 specific_ss.add(when: 'CONFIG_XICS', if_true: files('xics.c'))
 specific_ss.add(when: ['CONFIG_KVM', 'CONFIG_XICS'],