@@ -46,6 +46,7 @@ struct pvh_e820_table {
struct pvh_e820_table pvh_e820 __attribute__ ((aligned));
static struct hvm_start_info start_info;
+static struct hvm_modlist_entry ramdisk_mod;
static uint8_t cmdline_buffer[CMDLINE_BUFSIZE];
@@ -71,8 +72,8 @@ extern void pvh_load_kernel(void) asm("pvh_load_kernel");
void pvh_load_kernel(void)
{
void *cmdline_addr = &cmdline_buffer;
- void *kernel_entry;
- uint32_t cmdline_size, fw_cfg_version = bios_cfg_version();
+ void *kernel_entry, *initrd_addr;
+ uint32_t cmdline_size, initrd_size, fw_cfg_version = bios_cfg_version();
start_info.magic = XEN_HVM_START_MAGIC_VALUE;
start_info.version = 1;
@@ -110,6 +111,22 @@ void pvh_load_kernel(void)
fw_cfg_version);
start_info.cmdline_paddr = (uintptr_t)cmdline_addr;
+ /* Check if we have the initrd to load */
+ bios_cfg_read_entry(&initrd_size, FW_CFG_INITRD_SIZE, 4, fw_cfg_version);
+ if (initrd_size) {
+ bios_cfg_read_entry(&initrd_addr, FW_CFG_INITRD_ADDR, 4,
+ fw_cfg_version);
+ bios_cfg_read_entry(initrd_addr, FW_CFG_INITRD_DATA, initrd_size,
+ fw_cfg_version);
+
+ ramdisk_mod.paddr = (uintptr_t)initrd_addr;
+ ramdisk_mod.size = initrd_size;
+
+ /* The first module is always ramdisk. */
+ start_info.modlist_paddr = (uintptr_t)&ramdisk_mod;
+ start_info.nr_modules = 1;
+ }
+
bios_cfg_read_entry(&kernel_entry, FW_CFG_KERNEL_ENTRY, 4, fw_cfg_version);
asm volatile("jmp *%1" : : "b"(&start_info), "c"(kernel_entry));
If we found initrd through fw_cfg, we can load it and use the first module of hvm_start_info to pass initrd address and size to the kernel. Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> --- pc-bios/optionrom/pvh_main.c | 21 +++++++++++++++++++-- pc-bios/pvh.bin | Bin 1536 -> 1536 bytes 2 files changed, 19 insertions(+), 2 deletions(-) diff --git a/pc-bios/pvh.bin b/pc-bios/pvh.bin index 38a41761014957d50eb55d790b6957888cbeee0a..8033080ada2db4c4613fdc3bb5a69d79c7b0c0ca 100644 GIT binary patch delta 735 zcmZqRY2cYKndyM&#;Nv<`Y|dZ$5|Uh85k;#<{2MnZ2__v85kHA9sn{HZvYZIPJmb| zfW&duHKLQ5nUrMIfhw902-q@k@G+F$J<hrSC<y|`S(k`Tc4U&S-@w4az+ic-T<m2U z69Yr<HjpGxgXJ;)wosrzw?N~kpkNn;ZV#5mj{zY;3Y-^99~fR*3^J!vbP15`Eo0c1 zzzXD<s2q1u0U8F>|Cout)f{N^UIC!Q4iTVG=c}~$y9I%~ogfvxH7Wv~w?60W5Uq#G zb^8ECzJtWNSyZ}1R9F_z0NXGJNbcZ<DuU@10jqOS5otY88nQzGD7y<}QQCW$0*+lE zt3K!K289;TXpa96n~%su$Hm7U?k!Pcm;iP@C<qup_A@ZNwE6%4fA1DG5F4yu2N#e9 zax=_C9<XzTprSw{MY?NLz=GW_Dm;r5fc6|`O#zZ102C5goB<ZffeP&asaQM#EH(uy zcAT|GlmilnFD)iJGRxEpyomk#|34@!c7fD%et6*v;$wse*j2kg!O{z~>V*bKQ3x<N zE|p|Lq(IIGO7Xnlg_tL@3*>Z=Q(yf415}LN%^5^G8scV%O`y;R+Qji<3DDe^<^K@j Z2no&!h6hlR%ga4L7i~VsEX~MR4FFIY;aUIy delta 434 zcmZqRY2cYKnW;f!<5YV_{Sp<C<E#!M3=9=V^Nf$Px&T>>3=9kl8-R?(1wdj)2Z)sc zB#yJ@h)iZ?Qj%c@s%SnSV9UV4$549rIBNn>5(JL3rie^-WRk9*!N9`6V0pM)?4=n{ zY40|WBv6CpVg5E%pg^}k<ENlt7lm#Qmd1|(Awde97fT-)URn$?r&BZqNcNU7>~;W} z(J7;H+(iY*0P26n#NRp{$k;2u3Un37%Fb75@AnA;c{@QWdTUffIzN5R*&&(+mFxBa zirfc@b+f2+hp4bDjsV*b10;6{Ko!CC3V_t@289Gro525v%|~RS<Kklv_ij-Gs$@u; z0Cpb8iy$ro!^@b-51D1cMPB^<`~N@4rd^^y(asw$-h%iT_JOV01+ui)MMdDn3812v j<^TWx2l~|T0E*vVzWMk6|K^V@e2kM=|4(AIW9$F`FOZ8_