qemu-riscv: update to qemu-2.11.92pre60378_f733c7b5f

This obsoletes two of the included patches, one of them RISC-V specific,
since they've been picked up by upstream.

This build has been confirmed as being able to build and run an (extremely
recent) RISC-V Fedora 28 Rawhide image, available from:

    https://fedorapeople.org/groups/risc-v/disk-images/

Signed-off-by: Austin Seipp <aseipp@pobox.com>

pkgs/applications/virtualization/qemu/riscv-initrd.patch

@@ -1,98 +0,0 @@
-From 44b0f612499764dad425d467aadacb01fbd4a920 Mon Sep 17 00:00:00 2001
-From: Shea Levy <shea@shealevy.com>
-Date: Tue, 20 Feb 2018 07:59:43 -0500
-Subject: [PATCH] riscv: Respect the -initrd flag.
-
-Logic for initrd start address borrowed from arm/boot.c
----
- hw/riscv/virt.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++---
- 1 file changed, 46 insertions(+), 3 deletions(-)
-
-diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
-index 46d95b2b79..5c7d191a3f 100644
---- a/hw/riscv/virt.c
-+++ b/hw/riscv/virt.c
-@@ -77,7 +77,35 @@ static uint64_t load_kernel(const char *kernel_filename)
-     return kernel_entry;
- }
- 
--static void create_fdt(RISCVVirtState *s, const struct MemmapEntry *memmap,
-+static hwaddr load_initrd(const char *filename, uint64_t mem_size,
-+                          uint64_t kernel_entry, hwaddr *start)
-+{
-+    int size;
-+
-+    /* We want to put the initrd far enough into RAM that when the
-+     * kernel is uncompressed it will not clobber the initrd. However
-+     * on boards without much RAM we must ensure that we still leave
-+     * enough room for a decent sized initrd, and on boards with large
-+     * amounts of RAM we must avoid the initrd being so far up in RAM
-+     * that it is outside lowmem and inaccessible to the kernel.
-+     * So for boards with less  than 256MB of RAM we put the initrd
-+     * halfway into RAM, and for boards with 256MB of RAM or more we put
-+     * the initrd at 128MB.
-+     */
-+    *start = kernel_entry + MIN(mem_size / 2, 128 * 1024 * 1024);
-+
-+    size = load_ramdisk(filename, *start, mem_size - *start);
-+    if (size == -1) {
-+        size = load_image_targphys(filename, *start, mem_size - *start);
-+        if (size == -1) {
-+          error_report("qemu: could not load ramdisk '%s'", filename);
-+          exit(1);
-+        }
-+    }
-+    return *start + size;
-+}
-+
-+static void *create_fdt(RISCVVirtState *s, const struct MemmapEntry *memmap,
-     uint64_t mem_size, const char *cmdline)
- {
-     void *fdt;
-@@ -233,6 +261,8 @@ static void create_fdt(RISCVVirtState *s, const struct MemmapEntry *memmap,
-     qemu_fdt_setprop_string(fdt, "/chosen", "stdout-path", nodename);
-     qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline);
-     g_free(nodename);
-+
-+    return fdt;
- }
- 
- static void riscv_virt_board_init(MachineState *machine)
-@@ -246,6 +276,7 @@ static void riscv_virt_board_init(MachineState *machine)
-     char *plic_hart_config;
-     size_t plic_hart_config_len;
-     int i;
-+    void *fdt;
- 
-     /* Initialize SOC */
-     object_initialize(&s->soc, sizeof(s->soc), TYPE_RISCV_HART_ARRAY);
-@@ -265,7 +296,8 @@ static void riscv_virt_board_init(MachineState *machine)
-         main_mem);
- 
-     /* create device tree */
--    create_fdt(s, memmap, machine->ram_size, machine->kernel_cmdline);
-+    fdt = create_fdt(s, memmap, machine->ram_size,
-+                     machine->kernel_cmdline);
- 
-     /* boot rom */
-     memory_region_init_ram(boot_rom, NULL, "riscv_virt_board.bootrom",
-@@ -273,7 +305,18 @@ static void riscv_virt_board_init(MachineState *machine)
-     memory_region_add_subregion(system_memory, 0x0, boot_rom);
- 
-     if (machine->kernel_filename) {
--        load_kernel(machine->kernel_filename);
-+        uint64_t kernel_entry = load_kernel(machine->kernel_filename);
-+
-+        if (machine->initrd_filename) {
-+            hwaddr start;
-+            hwaddr end = load_initrd(machine->initrd_filename,
-+                                     machine->ram_size, kernel_entry,
-+                                     &start);
-+            qemu_fdt_setprop_cell(fdt, "/chosen",
-+                                  "linux,initrd-start", start);
-+            qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-end",
-+                                  end);
-+        }
-     }
- 
-     /* reset vector */

pkgs/applications/virtualization/qemu/riscv.nix

@@ -2,21 +2,24 @@
   src = fetchFromGitHub {
     owner  = "riscv";
     repo   = "riscv-qemu";
-    rev = "af435b709d4a5de3ec2e59ff4dcd05b0b295a730";
-    sha256 = "1kqcsn8yfdg3zyd991i4v5dxznd1l4a4hjry9304lvsm3sz2wllw";
+    rev    = "f733c7b5f86147216e14aff90c03ccdd76056bef";
+    sha256 = "1ppr9qqwi7qqh8m6dgk1hrzg8zri240il27l67vfayd8ijagb9zq";
     fetchSubmodules = true;
   };
-  version = "2.11.50";
-  revCount = "58771";
-  shortRev = "af435b709d";
+  version = "2.11.92";
+  revCount = "60378";
+  shortRev = builtins.substring 0 9 src.rev;
   targets = [ "riscv32-linux-user" "riscv32-softmmu"
               "riscv64-linux-user" "riscv64-softmmu"
             ];
 in lib.overrideDerivation qemu (orig: {
   name = "${(builtins.parseDrvName qemu.name).name}-${version}pre${revCount}_${shortRev}";
   inherit src;
-  # https://github.com/riscv/riscv-qemu/pull/109
-  patches = orig.patches ++ [ ./riscv-initrd.patch ];
+  # The pulseaudio and statfs patches are in 2.12.0+, which this is based on
+  patches = [
+    ./force-uid0-on-9p.patch
+    ./no-etc-install.patch
+  ];
   configureFlags = orig.configureFlags ++ [ "--target-list=${lib.concatStringsSep "," targets}" ];
   postInstall = null;
 })